MBlake55

(97' civic ex d16 turbo) I was just wondering wat the symptoms were becuase i have a check engine light for code 14 but i cleaned out the iacv with carb cleaner and put it back in and it still runs shitty............when i start up and give it gas to take off it hesitates and jerks real bad till i give it a lot of gas anyone know wat to do? thanks

RCautoworks

Sounds more like you have an ignition or fuel problem, the problems I have seen with iacv valves is a weird idle, or sometimes the car would just die out once it warmed up to operation temps.

uneek360

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MBlake55 &raquo;</TD></TR><TR><TD CLASS="quote">(97' civic ex d16 turbo) I was just wondering wat the symptoms were becuase i have a check engine light for code 14 but i cleaned out the iacv with carb cleaner and put it back in and it still runs shitty............when i start up and give it gas to take off it hesitates and jerks real bad till i give it a lot of gas anyone know wat to do? thanks</TD></TR></TABLE>

I had the same problem with mines and turns out i had to adjust the TPS sensor...

MBlake55

wat do u mean adjust the tps? my car starts and then sumtimes dies after im driving it for a while like when i pull up to a stop light, or coast for a while in nuetral.........i just figured it was the iacv because it has a really low idle like 200 at start up and it jerks when i go to take off or even when im in like 4rth gear at really low rpm idk

jers99

Mine has been doing the same thing (dying @ a light) but it would jerk when I would let off the throttle~I finally just forked over the $$$ and bought a new iacv (wasn't cheap) and it didn't do it for like a week b4 it happened a again. I took it back to the shop and they just adjusted my idle and it stop but I've only had it back for a few days so ill keep u posted

forcefedferio

i got the same problem on my 00 hatch....i scanned it and it said it was a circuit problem meaning that it was probably something to do with the wiring and not the IACV itself....if it's the same thing thats happening to me as whats happening to yours its like it idle surges a little bit and if you rev it up and hold it at about 1800 (rpm might be different for you) it sounds like it has a 2 step rev limiter but above or below 1800 it's fine. im going to try to do something with mine but i'll keep you posted on what happens.

MBlake55

that is exactly wat is happening to mine and its probably the wiring or something else besides the actual iacv but idk wat to do thanks for the help

DecentCivicZ6

check that iac valve. had some problem on GSR...mine just wasbt plugged up... tried a TPS wasnt that...rtried MAP sensor..wwasnt that...mine would idle at like 200rpms. and then at 1500rpms jerk liek hell,made it hard to drive from a stop...engine would jerk like hell with the 6puck clutch...check into that valve like u doing. make sure it isnt broken, thats exactly the pproblem i bet.

MBlake55

bump

MBlake55

okay guys i replaced the IACV 165 bucks later and it still does the jerking and hesitating........idk wat is wrong but has anyone fixed theirs yet or have any other suggestions?

pdiggitydogg

did you try cleaning the connector and using dielectric grease before you shelled out that money?
I had the same problem a few years ago - did the above, no issues since

Hybrid96EK

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MBlake55 &raquo;</TD></TR><TR><TD CLASS="quote">okay guys i replaced the IACV 165 bucks later and it still does the jerking and hesitating........idk wat is wrong but has anyone fixed theirs yet or have any other suggestions?</TD></TR></TABLE>

Of course it did. Measure the voltage on the TPS with engine off, throttle closed. I think you will find you are WAY off. Should be .45-.50 volts.

MBlake55

okay so how do i adjust it?

RCautoworks

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MBlake55 &raquo;</TD></TR><TR><TD CLASS="quote">okay guys i replaced the IACV 165 bucks later and it still does the jerking and hesitating........idk wat is wrong but has anyone fixed theirs yet or have any other suggestions?</TD></TR></TABLE>

Pick up a multimeter and find the problem.

DecentCivicZ6

[QUOTE=MBlake55]okay guys i replaced the IACV 165 bucks later and it still does the jerking and hesitating........idk wat is wrong but has anyone fixed theirs yet or have any other suggestions?[/QUOT iacv fixed ours

m3tech95

i had that problem with a 98 4 door civic... i changed the tps , map eventually the whole THROTTLE BODY GOT SWAPPED...NOTHING WORKED.. SOMETIMES THE VACUUM LINES ARE CRACKED.... I ENDED UP PUTTIN IN A COLD AIR INTAKE SOLVED THE PROBLEM NEVER HAD A SURGE SINCE... (CHECK UR VACUUM LINES 1ST B4 SHELLING OUT THAT MUCH MONEY)