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car stalls after letting go of the throttle

 
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Old 09-08-2013, 04:52 PM
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car stalls after letting go of the throttle

i have a 93 Si H23 non vtec and i recently just swapped the old auto with an h 22 5 speed but for some reason once the car is warm and i tap on the throttle and when i let go the car will stall out. if i drive it when its cold everything is fine until it warms up and im left at a stop sign. it drives great. if i never step on the gas pedal at all itll idle just fine.

i have newish everything cap rotor plugs wires battery ive also tried wiggling the key (when i googled people said it might be the ignition) the throttle cable seems to be fine i didnt touch anything on the motor except for the harness when i did the 5 speed swap. prior to the swap the car was running completely normal.

i swapped the iacv when i rebuilt the h23. if i unplug it the car stalls. ive cleaned the egr also when the i rebuilt the engine including the ports when i unplug the egr it runs the same. i sprayed around looking for vacuum leaks and found nothing wrong there.

please guys if you can help me out!!! also sometimes it wont happen there are good days but most are bad.
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Old 09-08-2013, 09:38 PM
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Re: car stalls after letting go of the throttle

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Originally Posted by preludesi209 View Post
i have a 93 Si H23 non vtec and i recently just swapped the old auto with an h 22 5 speed but for some reason once the car is warm and i tap on the throttle and when i let go the car will stall out. if i drive it when its cold everything is fine until it warms up and im left at a stop sign. it drives great. if i never step on the gas pedal at all itll idle just fine.

i have newish everything cap rotor plugs wires battery ive also tried wiggling the key (when i googled people said it might be the ignition) the throttle cable seems to be fine i didnt touch anything on the motor except for the harness when i did the 5 speed swap. prior to the swap the car was running completely normal.

i swapped the iacv when i rebuilt the h23. if i unplug it the car stalls. ive cleaned the egr also when the i rebuilt the engine including the ports when i unplug the egr it runs the same. i sprayed around looking for vacuum leaks and found nothing wrong there.

please guys if you can help me out!!! also sometimes it wont happen there are good days but most are bad.
hmm interesting, just out of curiosity, uve checked to make sure all vacuum hoses r connected and no leaks? Wonder if its possibly 1 of your sensors/valves malfunctioning, even though uve replaced or cleaned. (I had bought a brand new iacv from advanced auto parts and it didnt work properly) Gl with this though
Edit: Have u checked ur tps?
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Old 09-08-2013, 09:40 PM
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Re: car stalls after letting go of the throttle

anyone!? also just in case it helps i did the valve lash prior to the swap but again car was working properly it passed smog and the next day i started the swap and it sat for about 5 weeks. i have already put new gas in it. also i know i was going to have left over plugs from the tranny swap and i have 3 in the front that went to the solenoids for the auto but i also have one hanging in the back by where the VSS is and im not sure where that one goes? maybe thats it.
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Old 09-08-2013, 09:43 PM
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Re: car stalls after letting go of the throttle

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Originally Posted by Project_Lude View Post
hmm interesting, just out of curiosity, uve checked to make sure all vacuum hoses r connected and no leaks? Wonder if its possibly 1 of your sensors/valves malfunctioning, even though uve replaced or cleaned. (I had bought a brand new iacv from advanced auto parts and it didnt work properly) Gl with this though
Edit: Have u checked ur tps?
whats a new iacv running? i just cleaned it just to try it out and it made no difference at all. how do i check the tps? when i unplug it the car turns off so i assumed its doing something right if it stays on when its plugged in
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Old 09-08-2013, 09:47 PM
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Re: car stalls after letting go of the throttle

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Originally Posted by preludesi209 View Post
whats a new iacv running? i just cleaned it just to try it out and it made no difference at all. how do i check the tps? when i unplug it the car turns off so i assumed its doing something right if it stays on when its plugged in
a new iacv was like $225 and try replacing the tps, its like $45 if that doesnt solve it just take it back
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Old 09-08-2013, 09:51 PM
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Re: car stalls after letting go of the throttle

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Originally Posted by Project_Lude View Post
a new iacv was like $225 and try replacing the tps, its like $45 if that doesnt solve it just take it back
would the one on my h22 work? i have an h22a laying around.
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Old 09-08-2013, 11:12 PM
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Re: car stalls after letting go of the throttle

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Originally Posted by preludesi209 View Post
would the one on my h22 work? i have an h22a laying around.
should, u have a h22 swapped in correct?
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Old 09-09-2013, 12:30 AM
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Icon14 Re: car stalls after letting go of the throttle

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Originally Posted by Project_Lude View Post
should, u have a h22 swapped in correct?
no im rocking the stock h23 im using the h22 for an accord wagon i own but hey man thanks a lot i ended up just swapping over the throttle bodies and it didnt stall out this time!!!! i gave it a test run and everything. i guess it was the tps. im going to test it more tomorrow in the day time cuz this car seems to be a bit moody but again thanks for the suggestion!
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Old 09-09-2013, 09:14 AM
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Re: car stalls after letting go of the throttle

Could have been. Carbon buildup?
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Old 09-09-2013, 09:35 PM
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Re: car stalls after letting go of the throttle

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Originally Posted by preludesi209 View Post
no im rocking the stock h23 im using the h22 for an accord wagon i own but hey man thanks a lot i ended up just swapping over the throttle bodies and it didnt stall out this time!!!! i gave it a test run and everything. i guess it was the tps. im going to test it more tomorrow in the day time cuz this car seems to be a bit moody but again thanks for the suggestion!
yw! hope it really was just the tps
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Old 10-01-2013, 02:28 AM
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Re: car stalls after letting go of the throttle

guys the problem is back!!! i finished up doing my timing belt and after that the problem started all over again... once the car warms up without throttle the car stalls out... no CEL this time either... any help or advice would be appreciated.
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Old 10-03-2013, 12:28 AM
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Re: car stalls after letting go of the throttle

anyone!? please its driving me nuts... today i revved higher than normal just to see if there was air bubbles in the gas lines causing the problem or anything like that and i got knock sensor code but i dont think that can cause the problem i have... i cant be the only one that has gone through this please help
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Old 10-03-2013, 04:37 PM
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Re: car stalls after letting go of the throttle

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Originally Posted by preludesi209 View Post
anyone!? please its driving me nuts... today i revved higher than normal just to see if there was air bubbles in the gas lines causing the problem or anything like that and i got knock sensor code but i dont think that can cause the problem i have... i cant be the only one that has gone through this please help
My car seems to idle low and wants to stall when warm, but runs fine when cold. I believe my problem is timing. I don't think my timing is on point. I also need a valve adjustment bad. Have you checked your timing? Compression?
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Old 10-06-2013, 10:42 AM
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Re: car stalls after letting go of the throttle

First an foremost did you change ecu when you changed transmission,also what all did you touch during the rebuild was it top end only or from oil pan up? Start with checking your tps with a voltmeter .5V at idle 4.5V wide open throttle you also may want to adjust your valves .07-.11 intake .15-.19 exhaust make sure you torque all adjusters back down to 20ft/lbs your cam timing both arrows should be up feel free to lock the cam gear in place using a screwdriver or two punch to ensure proper position you also need to set the crank to top dead center in other words line the crank pulley arrow up with the arrow on the block then set the cam gears to top dead center and timing at dizzy should be lined up at 13-17 degrees btdc also check your throttle cable to make sure for proper tension
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Old 10-09-2013, 08:49 PM
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Re: car stalls after letting go of the throttle

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Originally Posted by Eve View Post
My car seems to idle low and wants to stall when warm, but runs fine when cold. I believe my problem is timing. I don't think my timing is on point. I also need a valve adjustment bad. Have you checked your timing? Compression?
I did set the timing belt like last week but I think it's loose for some reason I get like this flapping sound from the exhaust cam to the crank...? I'm not sure how to tighten it I followed the cranking steps in the manual I also bought new springs from honda and still I get that sound.

I also tried ignition timing but the light seems jumpy. My car sounds like its stuttering like the idle is jumping but the RPMs remain the same. I ended up going full advance and now it's less likely to stall out but every so often it'll stall at a stop.
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Old 10-09-2013, 09:00 PM
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Re: car stalls after letting go of the throttle

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Originally Posted by h22A_civic View Post
First an foremost did you change ecu when you changed transmission,also what all did you touch during the rebuild was it top end only or from oil pan up? Start with checking your tps with a voltmeter .5V at idle 4.5V wide open throttle you also may want to adjust your valves .07-.11 intake .15-.19 exhaust make sure you torque all adjusters back down to 20ft/lbs your cam timing both arrows should be up feel free to lock the cam gear in place using a screwdriver or two punch to ensure proper position you also need to set the crank to top dead center in other words line the crank pulley arrow up with the arrow on the block then set the cam gears to top dead center and timing at dizzy should be lined up at 13-17 degrees btdc also check your throttle cable to make sure for proper tension
When I did the 5speed swap I did change from an auto ecu to a manual one. When I did the rebuild it was everything piston rings valves all that. I'm not sure how to check the tps but I'll look around but I swapped the tps with my H22 and that worked until I started messing with timing. Valves were adjusted properly a couple months ago. But I'm still concerned about the jumping line for timing the car. Could it be a bad distributor causing this? I also have scars on my distributor cap prongs which doesn't seem normal to me.
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Old 10-10-2013, 12:46 PM
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Re: car stalls after letting go of the throttle

you said it only happens when the car is warm?
also if you rev higher will the car still stall out?
i had a bad dizzy that would stop working as soon as the car warmed up, might be a good idea to check it
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Old 10-11-2013, 09:24 AM
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Re: car stalls after letting go of the throttle

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you said it only happens when the car is warm?
also if you rev higher will the car still stall out?
i had a bad dizzy that would stop working as soon as the car warmed up, might be a good idea to check it
It has it's good days and bad days. 2 days ago it was raining and it kept stalking on me. Yesterday it wasn't raining and it ran perfect the RPMs didn't even drop from 800 at all. But yes only when the car is warm will it happen. And it doesn't matter how much or how little I rev it will stall out as soon as I let go of the petal. I think it might be my distributor too but how do I check it? I seen this Eric the car guy video and he said if there was oil in the dizzy it was a problem which there was but what if it's just a bad seal that let some oil work it's way in.
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Old 10-11-2013, 12:42 PM
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Re: car stalls after letting go of the throttle

Youll have to remove your dizzy and take it apart.
I took mine apart the other day and turned out my ignition coil was over heating, it actually melted the rotor to the assembly. I also remember i had a problem like you too, i would try to take off and i would stall no matter how high i revved. Turned out one of my spark plug wires had popped out of its pin from the dizzy and wasn't barely making contact, check and make sure all your wires are mounted right
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Old 10-11-2013, 11:26 PM
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Re: car stalls after letting go of the throttle

IF YOU HAVE A NOISE COMING FROM THE WHAT SOUNDS LIKE THE EXHAUST CAM...AND YOU GOT OIL IN YOUR DISTRIBUTOR CAP......CAR STALLING OUT AND SCARS IN THE CAP.....SOUNDS TO ME LIKE YOUR BEARING/BUSHING IN THE DISTRIBUTOR IS WORN OUT. COULD IT BE THAT THERE'S THAT MUCH SLOP IN THE SHAFT THAT THE ROTOR IS WOBBLING AND SCRAPING THE POSTS?

CHECK YOUR TPS WITH A VOLTMETER. SHOULD READ VERY CLOSE TO IF NOT EXACTLY .5V AT IDLE AND 4.5 AT WIDE OPEN THROTTLE

Last edited by 705ludeSH; 10-12-2013 at 12:02 AM.
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Old 10-11-2013, 11:33 PM
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Re: car stalls after letting go of the throttle

^ so angry
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Old 10-13-2013, 10:21 PM
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Re: car stalls after letting go of the throttle

So today I went out and bought a new dizzy well a remanufactured one and I went ahead and got new plugs cap n rotor and after I installed it the car wouldn't start :( it just cranked forever. So I went back took back my old one and it started back up. They said they'll order me a new one and I'll get it tomorrow I'll let you guys know if it solves all my problems. Thank you guys for direction.
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Old 10-15-2013, 09:04 PM
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Re: car stalls after letting go of the throttle

Okay guys with a new distributor the problem is still there. I think I have a coolant leak now though. Ima look for it and make sure all that is running correctly.
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