i know there have been many threads about an idle problem.......i have a 92 prelude and as of yesterday, my car has decided it wants to idle around 3500 rpm all the time. whether it is warm or cold. i have replaced the iac and now replaceing the fast idle.....everything else checks out ok. no check engine lights or anything. if i unplug the iac, the idle drops and bounces.... so i really dont think it is the fast idle.... just kind of tryign to get some feedback on what you all might think

 

So you have replaced the IACV and the FICA.

You are sure there are no leaks on any of the gaskets in the manifold?

Id guess checking your TPS nexr.

 

Any mods to the tb lately, other than what you've listed? New air intake maybe???

Check the tps like "acidcracker" said. Did you reset the ecu, after changing the iacv and so forth?

3500 rpm seems to be extremely high for idle. Have you adjusted the tb screw any?

Give us a little more detail. It's a good possibility that you could be changing parts for nothing, other than a minor fix. Idk.

Let us know.....

 

can anybody where this parts loacted at..

IACV
FITV
IFICA

 

The top 2 are on the IM connected by little coolant hoses.

The bottom one Ive never heard of.

 

i have the same issue, the car is a 98 accord but has an h22a4 out of an 01 prelude. i have replaced the fitv, iacv, and tps.

 

by the way, my original issue was the bouncing idle problem, so i ordered all three parts i found out it was the fitv, but the really high steady idle didn't start till after replacing the tps. i put the old one back on but the problem stayed

 

How tight is your throtal cable

 

yeah, make sure there is slack in the throttle cable..

 

yeah there is slack in it, i even disconnected it and it does the exact same thing

 

Check your TPS, you probally have a bad gasket somewhere

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Acidcrakker &raquo;</TD></TR><TR><TD CLASS="quote">Check your TPS, you probally have a bad gasket somewhere</TD></TR></TABLE>
do you think maybe the tps or throttle body gasket?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sxm5369 &raquo;</TD></TR><TR><TD CLASS="quote">
do you think maybe the tps or throttle body gasket?</TD></TR></TABLE>

Thats why I posted it

 

try to find any vacuum hose leaking air around throttle body.

 

i replaced the tps gasket and the high idle problem stopped, but now the bouncing idle problem came back. it jumps from 1000 to 2800 rpm

 

Have you read Mgags thread yet?
Cliky

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Acidcrakker &raquo;</TD></TR><TR><TD CLASS="quote">Have you read Mgags thread yet?
Cliky</TD></TR></TABLE>
thanks for directing me there, there is a similar on in the accord section but not as good.

 

hey guys, i finally fixed my idle problem, after replacing the fitv, iacv, and tps, and nothing happening i took apart the intake manifold and it was one of the gaskets that was leaking and pulling air in. it looks like oil was getting in the intake from the line that goes from the valve cover to the intake, and the oil is what was wearing out the gasket. i replaced the gaskets and cleaned the egr, intake manifold, throttle body really good and now it runs perfect. hope this info can help someone