I need help! My problem is that after I drive my car for a bit and I step off the gas my idle will go really low basically to 0 and sometimes just turns off on me and it also does this when I turn a corner. When I'm on the gas it runs fine though and I just cleaned my fitv and iacv and it's running exactly the same still. It's a JDM h22a. I would like to know what you guys think before I take it to the shop cus if it's something I could fix it would be awesome :) any help will be greatly appreciated thanks guys!

Sounds like ignition/fuel pump.

do a compression test. your rings might be going. if you bump up your fuel pressure it will help you a little bit

__________________

J.L.D.E.P.P.M.S.3.C.N.Y.C.N.C.A.D
Jams Lobsta Denny EA Peter Prelude Miata STI 300zx club of NY and Canada and NC All Day.

#MadeMorePowerThanJoshClub
Bustr Built

Built in America.
H23A1 2.4t VTEC Project

Okay will do a comp test. But I'm curious as to how increasing the fuel pressure would help :0 thanks for the help tho guys!

i feel u on this one man... i have the same problem...
ive been tryin to fix it..
cleaned out my IACV , FITV, EGR, MAP sensor..
when i posted the exact same problem nobody adviced me to try comp test
nobody even bothered to reply... i wonder what i did to them...
im still here tho.. so we can figure this out man..
it shouldnt be really that hard..

That sucks that nobody replied :( but since we're in the same boat lets stick together! Lol. Im going to do a comp test as soon as I get my hands on a compression tester and I'll let you guys know what comes up

not to be mean but, cry a river, build a bridge, get over it, and start googling

Google says fitv and iacv, if it were as easy as just googling it then there probably wouldn't be as many problems being posted, but there can be many different problems so we want to know what you guys have to say since we all have Ludes and maybe somebody has gone through the same thing and could help shed a light on the subject. Sadly Google doesn't always help :/ lol

First things first

Adjust your idle screw on the throttle body turn it all the way up.
Had the same problem felt like it was starving for fuel.

That should fix the problem if not test the fuel regulator ;)
Goodluck

__________________
My Build thread = http://www.preludezone.com/members-r...2-sir-bb2.html

Be Apart of one of the biggest prelude groups around today.
BB Alliance has impacted TEXAS and is now being seen around the world
so take part in our facebook page for information and updates.
https://www.facebook.com/#!/groups/BBalliance/



I'm addicted to S/C porn!!!

Same thing happened to me too. Make sure to check the coolant level, make sure the car has enough coolant. For me, the problem came from the MAP sensor. I got another MAP sensor from another old Honda (for free) and it fixes the problem. Hope this helps.

Is there a way to check the MAP sensor?
I heard that the idle screw should be the last thing to check :0 I'll try it tho lol

if i seen your post i would have helped

__________________

J.L.D.E.P.P.M.S.3.C.N.Y.C.N.C.A.D
Jams Lobsta Denny EA Peter Prelude Miata STI 300zx club of NY and Canada and NC All Day.

#MadeMorePowerThanJoshClub
Bustr Built

Built in America.
H23A1 2.4t VTEC Project

ok while the car is turned off look for the vac hose going into the fuel pressure regulator. its coming from the intake manifold. take the vac hose out from the fuel pres reg and cap off the line with tape or a screw. that should bump up your fuel pressure by almost 5psi. keep in mind this is not a permanent fix, it will only help you tiny bit with the stalling. my logic behind this is that IF it is your rings that went bad and you are losing compression in the cyls its washing away gas on the cyl walls. its not burning enough fuel and you are stalling out. bumping up the fuel pressure should feed more gas into the engine.

i had the same problem with my h22. did so much research, checked everything there is to check and changed out everything. the stalling out kept getting worst and worst, it got to a point where my car would stall and not start for 20-30mins till the engine was cool again.

__________________

J.L.D.E.P.P.M.S.3.C.N.Y.C.N.C.A.D
Jams Lobsta Denny EA Peter Prelude Miata STI 300zx club of NY and Canada and NC All Day.

#MadeMorePowerThanJoshClub
Bustr Built

Built in America.
H23A1 2.4t VTEC Project

If you have the Helms Manual, there will be a section in there describing how to check the MAP sensor. If I remember correctly, it goes something like this "while the car is running, unplug the MAP sensor, if the car dies, then the sensor is still good, ...." but don't take my words for it. I was lucky to have mechanic friend who just got a wrecked Honda Accord in, so he just let me took the Accord's sensor. I plugged it right in and used it until now. Goodluck.

i changed my map sensor.. and it removed my bank 2 sensor lean code..
i cleaned fitv, iacv, egr.. replaced air filter...
checked my coolant.. bled it..
mine stalls when its really cold outside..

@flyerforlife..
i did everything i saw on google, youtube, searching
so if u dont have any useful info just gtfo the thread