Honda Prelude Forum
 
Go Back   Honda Prelude Forum > Tech-Talk > 3rd Gen Honda Prelude

Thread Title
LOW IDLE AFTER WARM UP

 
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 03-29-2018, 10:36 AM
Platinum Member
 
Join Date: Feb 2010
Location: Fayetteville, Ga.
Posts: 1,250
iTrader: (0)
Lespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond repute
LOW IDLE AFTER WARM UP

Starts up at 1500 then after warmed up is basic 770. But when it's really warmed up I rev it and drops to close to 5 or 600 rpms. Curious if it's an idle control valve problem.? Anyone get this? At least it's not a high idle.
Reply With Quote
  #2 (permalink)  
Old 03-30-2018, 10:58 AM
Platinum Member
 
Join Date: Mar 2011
Location: Eastern WA
Posts: 2,248
iTrader: (1)
luzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

You want to adjust the idle with the engine fully warmed up. I'm not sure what you mean when you say "after warmed up is basic 770", then you say "But when it's really warmed up". What are you defining as warmed up -vs- really warmed up? Was it fully up to temp when it was idling at 770 rpms? To be fully warmed up, let the engine idle until the cooling fan has cycled on and off twice. Try adjusting the idle speed with the engine fully warmed up.
__________________
1991 Prelude Si ALB 4WS
2017 Ram Rebel
Reply With Quote
  #3 (permalink)  
Old 03-30-2018, 07:28 PM
Platinum Member
 
Join Date: Feb 2010
Location: Fayetteville, Ga.
Posts: 1,250
iTrader: (0)
Lespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

After it's fully warmed up and cooling fan comes on, You rev it up and It'll drop to 500 rpms almost dying then will slowly come up to 770.
Reply With Quote
  #4 (permalink)  
Old 03-31-2018, 08:48 AM
bykfixer's Avatar
Supreme Member
Photobucket
 
Join Date: Aug 2012
Location: could you repeat the question?
Posts: 11,051
iTrader: (4)
bykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

Got vaccuum testing kit Les?


My 5g engine was doing that and I discovered vacuum was not breaking proper when decelarating. Don't know the proper term there, but basically opening up the throttle body a quarter turn helped. I started out thinking it was the throttle cable.
I suspect it's valves or EGR but mothballed the car.
__________________


Quote:
Originally Posted by ogsmakdade View Post
welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
Quote:
Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
Quote:
Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

God's Not Dead

Last edited by bykfixer; 03-31-2018 at 08:52 AM.
Reply With Quote
  #5 (permalink)  
Old 03-31-2018, 09:36 PM
Sideswipe SI's Avatar
Grand Member
 
Join Date: Oct 2007
Location: Googlemap says I'm here... Dafuq?
Posts: 4,226
iTrader: (3)
Sideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

Im with Mike, clean egr port, new gasket and if you can snag a spare egr valve in case

If there is an excessive buildup in there check for a lean fuel condition, hopefully not
__________________
Quote:
SURGEON GENERAL WARNING:
THE IMITATION OF ANY OR ALL MANEUVERS EXECUTED BY A BA B20A 4WS PRELUDE IS HAZARDOUS TO YOUR CAR'S HEALTH. DRIVING A PRELUDE MAY CAUSE LOSS OF INTEREST IN OTHER CARS, WOMEN AND SPEED LIMITS. OTHER SYMPTOMS INCLUDE SLEEPLESS NIGHTS, COLD SWEATS AND OTHER SYMPTOMS RELATED TO ADDICTION. IF THE SYMPTOMS PERSIST,DRIVE!
Prelude: Because all great stories have one. Just like Honda.

Last edited by Sideswipe SI; 03-31-2018 at 09:46 PM.
Reply With Quote
  #6 (permalink)  
Old 04-08-2018, 01:03 AM
Platinum Member
 
Join Date: Feb 2010
Location: Fayetteville, Ga.
Posts: 1,250
iTrader: (0)
Lespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

Noticed a crack in the pcv hose. If you notice the diameter of the connections to the actual diameter of the heated hose over the years you might have the same problem too.
Reply With Quote
  #7 (permalink)  
Old 04-08-2018, 12:58 PM
bykfixer's Avatar
Supreme Member
Photobucket
 
Join Date: Aug 2012
Location: could you repeat the question?
Posts: 11,051
iTrader: (4)
bykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

I have a idle bounce issue in a 3G that may be caused by that Les.
I have a bunch of new hose to install at some point. Perhaps this will be the reason to finally do it. Small cracks are hard to see but can be big trouble in these cars.

Thanks for the tip.
__________________


Quote:
Originally Posted by ogsmakdade View Post
welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
Quote:
Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
Quote:
Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

God's Not Dead
Reply With Quote
  #8 (permalink)  
Old 04-08-2018, 06:00 PM
Sideswipe SI's Avatar
Grand Member
 
Join Date: Oct 2007
Location: Googlemap says I'm here... Dafuq?
Posts: 4,226
iTrader: (3)
Sideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

There is a platinum dressup silicone kit from back in the day that covers all the hoses not exposed to oil that includes the pcv, intake and vacuums so no more idle issues ...

EDIT:CHINGAS

I do not remember what ebay seller had it, but covered 3.5,4,5,6,8,10 milimeter sizes... sorry lespaul
__________________
Quote:
SURGEON GENERAL WARNING:
THE IMITATION OF ANY OR ALL MANEUVERS EXECUTED BY A BA B20A 4WS PRELUDE IS HAZARDOUS TO YOUR CAR'S HEALTH. DRIVING A PRELUDE MAY CAUSE LOSS OF INTEREST IN OTHER CARS, WOMEN AND SPEED LIMITS. OTHER SYMPTOMS INCLUDE SLEEPLESS NIGHTS, COLD SWEATS AND OTHER SYMPTOMS RELATED TO ADDICTION. IF THE SYMPTOMS PERSIST,DRIVE!
Prelude: Because all great stories have one. Just like Honda.

Last edited by Sideswipe SI; 04-08-2018 at 06:03 PM.
Reply With Quote
  #9 (permalink)  
Old 04-09-2018, 05:41 AM
Platinum Member
 
Join Date: Feb 2010
Location: Fayetteville, Ga.
Posts: 1,250
iTrader: (0)
Lespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

Really didnt do much but helped. Srewed in that fast idle valve and will report back.
Reply With Quote
  #10 (permalink)  
Old 04-09-2018, 08:42 AM
bykfixer's Avatar
Supreme Member
Photobucket
 
Join Date: Aug 2012
Location: could you repeat the question?
Posts: 11,051
iTrader: (4)
bykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

__________________


Quote:
Originally Posted by ogsmakdade View Post
welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
Quote:
Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
Quote:
Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

God's Not Dead
Reply With Quote
  #11 (permalink)  
Old 04-10-2018, 08:32 AM
Platinum Member
 
Join Date: Feb 2010
Location: Fayetteville, Ga.
Posts: 1,250
iTrader: (0)
Lespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

Well, Here's the update. Ran perfect sitting in the driveway. Took it for another spin and same thing. Idle would drop down after accelerating and stumbled big time once or twice at full throttle. Had to pull over to let the idle come back to normal. Almost felt like water was in the tank. But after settling to idle drove it home. WAS wondering if it's the throttle body, cause at full throttle I had nothing a few times? it's a 5-speed. Are there any throttle body's from honda interchangeable?

Last edited by Lespaul59; 04-10-2018 at 08:35 AM.
Reply With Quote
  #12 (permalink)  
Old 04-10-2018, 11:53 AM
Platinum Member
 
Join Date: Mar 2011
Location: Eastern WA
Posts: 2,248
iTrader: (1)
luzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

I'd be more suspicious of the TPS than the TB, but to answer your question, I've read that a mid-90's Acura Vigor throttle body bolts right on. Seems strange that a 5 cylinder TB would fit our intakes but apparently they do. I grabbed one from a 94 Vigor a few years back but never tried it. Here's a thread from another forum discussing it...
upgrade throttle body found! - Honda Prelude Forum : Honda Prelude Forums
__________________
1991 Prelude Si ALB 4WS
2017 Ram Rebel
Reply With Quote
  #13 (permalink)  
Old 04-10-2018, 05:31 PM
bykfixer's Avatar
Supreme Member
Photobucket
 
Join Date: Aug 2012
Location: could you repeat the question?
Posts: 11,051
iTrader: (4)
bykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

Are you see-ing a bunch of water spewing from the tailpipe Les? A buildup of water would cause weird backpressure issues.

In my 5g a lot of idling and short trips caused a buildup of condensation that led to some weird stuff. It was not until there was so much that I heard it girgling that I knew it was there. After blowing/boiling away a bunch of it fixed some of those issues. Unfortunately other things went wrong shortly after so I mothballed the car.
__________________


Quote:
Originally Posted by ogsmakdade View Post
welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
Quote:
Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
Quote:
Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

God's Not Dead

Last edited by bykfixer; 04-10-2018 at 05:34 PM.
Reply With Quote
  #14 (permalink)  
Old 04-11-2018, 08:08 AM
Platinum Member
 
Join Date: Feb 2010
Location: Fayetteville, Ga.
Posts: 1,250
iTrader: (0)
Lespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

Thanks Luzer! Autozone has the TPS FOR 42 bucks but gotta adjust it. Any links on the voltage readings to set it or is it in the Chiltons? I'll check the exhaust bykfixer and report. I'm guessing it's the TPS. Why would it not revv up at full throttle after driving? I had a TPS go bad on a 1990 automatic lude once. Going down a hill at idle in Neutral, the rpm's jumped way up. It sensed speed I guess and revved the engine up. Replaced the TPS and worked fine.
Reply With Quote
  #15 (permalink)  
Old 04-11-2018, 04:12 PM
Platinum Member
 
Join Date: Mar 2011
Location: Eastern WA
Posts: 2,248
iTrader: (1)
luzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond reputeluzer has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

Search this forum and the other forum as well on testing the TPS. I haven't had to do that before, but I remember reading several threads over the years on how to adjust them based on voltage readings at fully closed and wot. It may also tell you in the Chilton's manual, but I tend to be a little distrustful of those because they cover too many models of cars and model years. I've seen instances of wrong information for 3rd gens.
__________________
1991 Prelude Si ALB 4WS
2017 Ram Rebel
Reply With Quote
  #16 (permalink)  
Old 04-14-2018, 09:01 PM
Sideswipe SI's Avatar
Grand Member
 
Join Date: Oct 2007
Location: Googlemap says I'm here... Dafuq?
Posts: 4,226
iTrader: (3)
Sideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

Should also adjust and calibrate the throttle wire, cause when it goes, you get erratic idles throughout the RPMS
__________________
Quote:
SURGEON GENERAL WARNING:
THE IMITATION OF ANY OR ALL MANEUVERS EXECUTED BY A BA B20A 4WS PRELUDE IS HAZARDOUS TO YOUR CAR'S HEALTH. DRIVING A PRELUDE MAY CAUSE LOSS OF INTEREST IN OTHER CARS, WOMEN AND SPEED LIMITS. OTHER SYMPTOMS INCLUDE SLEEPLESS NIGHTS, COLD SWEATS AND OTHER SYMPTOMS RELATED TO ADDICTION. IF THE SYMPTOMS PERSIST,DRIVE!
Prelude: Because all great stories have one. Just like Honda.
Reply With Quote
  #17 (permalink)  
Old 04-15-2018, 11:45 AM
bykfixer's Avatar
Supreme Member
Photobucket
 
Join Date: Aug 2012
Location: could you repeat the question?
Posts: 11,051
iTrader: (4)
bykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

Quote:
Originally Posted by Sideswipe SI View Post
Should also adjust and calibrate the throttle wire, cause when it goes, you get erratic idles throughout the RPMS
Even idle bounce in my experience. Before I learned of the 10mm "droop" in the cable (as called for in the manual or something I forget) I tightened mine thinking it was too loose and after warm got an idle bounce. I turned it back using the old clean spot on the threads and viola... issue was gone.

There is a tool to check tension and when correct there is a slight droop in the cable when idling.
__________________


Quote:
Originally Posted by ogsmakdade View Post
welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
Quote:
Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
Quote:
Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

God's Not Dead
Reply With Quote
  #18 (permalink)  
Old 04-20-2018, 05:11 PM
Platinum Member
 
Join Date: Feb 2010
Location: Fayetteville, Ga.
Posts: 1,250
iTrader: (0)
Lespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

Well replaced TPS and runs perfect at idle. While driving it had only a few hiccups . Not bad and didn't fall flat at WOT. IDLE still dropped below 770 rpms a few times after revving. Yes bykfixer there is a lot of water in the tail pipe when warming up. Gonna adjust the throttle cable next. Then if I still have problems I'll take the fuel pump out and siphon all the gas out. Still don't know what makes it drop below normal idle after revving? My only guess is a bad IACV?
Reply With Quote
  #19 (permalink)  
Old 04-20-2018, 05:26 PM
bykfixer's Avatar
Supreme Member
Photobucket
 
Join Date: Aug 2012
Location: could you repeat the question?
Posts: 11,051
iTrader: (4)
bykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

__________________


Quote:
Originally Posted by ogsmakdade View Post
welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
Quote:
Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
Quote:
Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

God's Not Dead
Reply With Quote
  #20 (permalink)  
Old 04-20-2018, 10:36 PM
Platinum Member
 
Join Date: Feb 2010
Location: Fayetteville, Ga.
Posts: 1,250
iTrader: (0)
Lespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

SOMETHING is allowing the idle to drop to 500 rpm's after revving and it's gotta be the IACV. What else allows idle to drop then come up to normal?
Reply With Quote
  #21 (permalink)  
Old 04-21-2018, 02:15 PM
Platinum Member
 
Join Date: Feb 2010
Location: Fayetteville, Ga.
Posts: 1,250
iTrader: (0)
Lespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

Really going toward fuel or electrical. Cause when you put it in 2nd or 1st gear and floor it, it just falls flat for a few seconds before catching up. Bad FUEL Regulator? Bad ecm? Why else would it fall flat at WOT? Doesn't do it at cruise. Only when you let off throttle then accelerate. It's always getting air?
Reply With Quote
  #22 (permalink)  
Old 04-22-2018, 08:52 AM
bykfixer's Avatar
Supreme Member
Photobucket
 
Join Date: Aug 2012
Location: could you repeat the question?
Posts: 11,051
iTrader: (4)
bykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

Like an old 1970's quadra-jet 4 barrel bogging down for a few seconds?...
__________________


Quote:
Originally Posted by ogsmakdade View Post
welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
Quote:
Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
Quote:
Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

God's Not Dead
Reply With Quote
  #23 (permalink)  
Old 04-22-2018, 05:19 PM
Platinum Member
 
Join Date: Feb 2010
Location: Fayetteville, Ga.
Posts: 1,250
iTrader: (0)
Lespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

Hey! Still got a quadrajet on my 69 JUDGE!. Went back out and for the heck of it, Screwed the FIV down again only this time it went a little further. Almost half a turn more. Also set the TPS to be at 4.500 volts at WOT. I originally tried to get .50 to 4.50 somewhere close. Report soon.
Reply With Quote
  #24 (permalink)  
Old Yesterday, 08:48 AM
Platinum Member
 
Join Date: Feb 2010
Location: Fayetteville, Ga.
Posts: 1,250
iTrader: (0)
Lespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond reputeLespaul59 has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

Still falls flat when accelerating. Doesn't do it in Neutral but only in gear when there's a load?Almost sounds like ignition.
Reply With Quote
  #25 (permalink)  
Old Yesterday, 08:03 PM
Sideswipe SI's Avatar
Grand Member
 
Join Date: Oct 2007
Location: Googlemap says I'm here... Dafuq?
Posts: 4,226
iTrader: (3)
Sideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond reputeSideswipe SI has a reputation beyond repute
Re: LOW IDLE AFTER WARM UP

Complete shot in dark... check for restrictive flows in exhaust... like the cat and downpipe... cause if you ran rich, good chance your cat converter diededed, that would cause a blockage
__________________
Quote:
SURGEON GENERAL WARNING:
THE IMITATION OF ANY OR ALL MANEUVERS EXECUTED BY A BA B20A 4WS PRELUDE IS HAZARDOUS TO YOUR CAR'S HEALTH. DRIVING A PRELUDE MAY CAUSE LOSS OF INTEREST IN OTHER CARS, WOMEN AND SPEED LIMITS. OTHER SYMPTOMS INCLUDE SLEEPLESS NIGHTS, COLD SWEATS AND OTHER SYMPTOMS RELATED TO ADDICTION. IF THE SYMPTOMS PERSIST,DRIVE!
Prelude: Because all great stories have one. Just like Honda.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
warm idle problems HEEEELLLP!!!! Sih23a3 General Tech Talk 0 12-04-2013 08:36 PM
car cnt get past warm up sleepy5950 4th Gen Honda Prelude 16 02-18-2010 04:52 AM
bouncy warm up idle 94ludeguy 4th Gen Honda Prelude 15 04-13-2008 09:15 PM


All times are GMT -4. The time now is 08:34 PM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
vB.Sponsors


Copyright © 2006-2009 PreludeZone.com All Rights Reserved.