what could a bad iac be
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a
Joined: Jan 2004
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From: some where in us, usa
what could a bad iac be
what can it cause the car to do
14 IAC (EACV) - idle air control valve
i changes out my injectors to 345 cc prelude with
all of a sudden my car acts werid verry low idle at cold starts it wont hold idel when i drive it the throttle is verry jerkey
please i mean please some one help me
when i hold the idle around 1500 rpms the motor seems like it has a big *** vaccum leak it the rpms jump when i am holding idle at 1500 it so ****** weird
14 IAC (EACV) - idle air control valve
i changes out my injectors to 345 cc prelude with
all of a sudden my car acts werid verry low idle at cold starts it wont hold idel when i drive it the throttle is verry jerkey
please i mean please some one help me
when i hold the idle around 1500 rpms the motor seems like it has a big *** vaccum leak it the rpms jump when i am holding idle at 1500 it so ****** weird
71.192.16.183
Joined: Nov 2004
Posts: 18
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From: Red Sox Nation
..........A bad IACV could be..........a bad IACV, its the black thing on the back of your intake manifold with a wire plug and a few vacuum hoses connected to it. I think it can sometimes be fixed by just pulling it off and cleaning it out?
most hood white kid
Joined: Jul 2004
Posts: 9,505
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From: Nashville
i have the same problem, except i don't have a jerky throttle problem, I have a bouncy idle at lower RPM's a guy on here said reset your ECU, and clean out the IACV, but other than that, I have no clue, here is the thread where he told me to reset your ECU if you don't know how, I personally didn't know how, so it helped me.
https://honda-tech.com/zerothread?id=1102355
https://honda-tech.com/zerothread?id=1102355
Junior Member
Joined: May 2004
Posts: 780
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From: Cincinnati, OH, USA
Re: what could a bad iac be (b16coupe4)
... You can't run those 345cc injectors with your stock (240cc most likely) map! Fuel maps don't work by cc's, they work by duty cycles. If you have 75% duty cycle on a 240cc injector, it's going to put ~180cc's of fuel in... but with that same map, with the 345cc injector you're going to be dumping ~258.75cc's of fuel in.. more than your stock injectors can even flow!! Your car is most likely running very rich! Get it tuned.
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most hood white kid
Joined: Jul 2004
Posts: 9,505
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From: Nashville
Re: what could a bad iac be (ccivic)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ccivic »</TD></TR><TR><TD CLASS="quote">... You can't run those 345cc injectors with your stock (240cc most likely) map! Fuel maps don't work by cc's, they work by duty cycles. If you have 75% duty cycle on a 240cc injector, it's going to put ~180cc's of fuel in... but with that same map, with the 345cc injector you're going to be dumping ~258.75cc's of fuel in.. more than your stock injectors can even flow!! Your car is most likely running very rich! Get it tuned. </TD></TR></TABLE>
this guy knows what he is talking about...lol
this guy knows what he is talking about...lol
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hondachris1994
Honda Civic / Del Sol (1992 - 2000)
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Feb 25, 2006 02:37 PM
