IDLE issue (of course)

[uNdErCoVeR]

Mods listed below...

Alright here it goes... So i had my car scanned and it said problem with IAC. My car would idle find at about 1k rpms... When I come to a stop light it will bounce around then just completly die.. Sometimes it will want to die with out stopping. For instance slowing down pushing in the clutch and turning into my driveway... IAC is new and i checked it yesterday and it is clean with no carbon on it. IS it my stock computer taking a dump? Do i need fox comp and custom chip? Thanks guys

 

[94GTCoupe]

try reseting your idle here,fifth post down.
http://forums.stangnet.com/777761-idleing-high.html

 

[Zero_chance]

Custom chips and messing with the computer are the last things Id be looking into. Idle issues are very common as you probably know, try the idle reset procedure. Worked fine for me and I was experiencing similar issues.

 

[final5-0]

Mods listed below...

Alright here it goes... So i had my car scanned and it said problem with IAC. My car would idle find at about 1k rpms... When I come to a stop light it will bounce around then just completly die.. Sometimes it will want to die with out stopping. For instance slowing down pushing in the clutch and turning into my driveway... IAC is new and i checked it yesterday and it is clean with no carbon on it. IS it my stock computer taking a dump? Do i need fox comp and custom chip? Thanks guys

Well ... From the perspective of one who is familiar with what can be done
by optimizing the pcm I'd say you should do all you can with mechanical
adjustments before making adjustments to the pcm.

With that e cam ... you need to get the idle up :Word:

I'd start at 900 rpm

Having done that with mechanical means (tb blade stop screw) you will
cause other things to be outta whack in the pcm.

Basically ... you need to play with the tb screw and isc until you find
a balance between them that gives you the most stable idle you
can obtain.

You wanna give the pcm enough time for its adaptive strategy to settle
down which could take a day or two depending upon how much idle
time is incuded in your driving conditions before you make another
adjustment.

It might be helpful if you do a pcm reset when you make a new adjustment

With that e cam and the aftermarket meter ... I'd say you got about a 50 50
chance of finding some kind of acceptable drivability you can live with

btw ... what size inj's you running

Grady

 

[uNdErCoVeR]

Well ... From the perspective of one who is familiar with what can be done
by optimizing the pcm I'd say you should do all you can with mechanical
adjustments before making adjustments to the pcm.

With that e cam ... you need to get the idle up :Word:

I'd start at 900 rpm

Having done that with mechanical means (tb blade stop screw) you will
cause other things to be outta whack in the pcm.

Basically ... you need to play with the tb screw and isc until you find
a balance between them that gives you the most stable idle you
can obtain.

You wanna give the pcm enough time for its adaptive strategy to settle
down which could take a day or two depending upon how much idle
time is incuded in your driving conditions before you make another
adjustment.

It might be helpful if you do a pcm reset when you make a new adjustment

With that e cam and the aftermarket meter ... I'd say you got about a 50 50
chance of finding some kind of acceptable drivability you can live with

btw ... what size inj's you running

Grady

The car normally sits around 1,000. but then will just die more often then not. injectors are 24#

 

[HISSIN50]

Did the code say that the idle limit could not be maintained?

If so and this is a new issue, you might have a vacuum leak that's causing your issues.

Also check your idle bleed screw. Occasionally the screws move. For some folks, more than ~1.5 turns from seated makes the idle start to hang.

Good luck.