Idle issues

[CC_GSR93]

Hi everyone,

This morning, all of a sudden the GSR's idle went crazy.
Started her up cold, and at the lights, it was idling at 500rpm or so and stalling sometimes.

Then, after the car got warm, the idle speed was going up and down without any throttle input from myself!!

Finally, when I got to work, and left the turbo timer on for a minute or so, the idle was at 1500rpm.

On the way home from work, it was idling lower then normal again, but didnt cut out.

Can only assume my idle controller has shit itself, or I have an issue with airflow sensors. Anybody else had this happen to them? Feedback appreciated.

 

[3zercrowd]

Hi everyone,

This morning, all of a sudden the GSR's idle went crazy.
Started her up cold, and at the lights, it was idling at 500rpm or so and stalling sometimes.

Then, after the car got warm, the idle speed was going up and down without any throttle input from myself!!

Finally, when I got to work, and left the turbo timer on for a minute or so, the idle was at 1500rpm.

On the way home from work, it was idling lower then normal again, but didnt cut out.

Can only assume my idle controller has shit itself, or I have an issue with airflow sensors. Anybody else had this happen to them? Feedback appreciated.

1.Check that you dont have a boost leak in your intercooler pipes.
2. Check that you dont have a boost leak in your VAC lines.
3.Check that your BOV sensor line hasnt come off the top of the BOV, or has a split in it.
4.Check that your AFM isnt unplugged.
5. USE the search feature on the forum for all this info thats been posted so many times before.

 

[cblancergsr]

1.Check that you dont have a boost leak in your intercooler pipes.
2. Check that you dont have a boost leak in your VAC lines.
3.Check that your BOV sensor line hasnt come off the top of the BOV, or has a split in it.
4.Check that your AFM isnt unplugged.
5. USE the search feature on the forum for all this info thats been posted so many times before.

and dont forget too remove your idle stepper motor and check that it isnt carboned up and or check the resistance between the coils in the stepper motor itself

 

[EVO-00X]

Classic symptoms of a clapped out ISC

 

[lefty]

Idle Speed Controller

Dont pay $400 from mitsu like I did :|

 

[Liberoz]

ISC even cheaper if you get from ACA I didnt say that on a public forum BTW

 

[EVOCPE]

Didnt know u can get them from A Current Afair lol

Pick and payless or wreckers, thers a few cars you can pinch them off

 

[p3akin]

i got one from meek for like 70 bucks.. or maybe 110 bucks..

but definately under 150 easy.

 

[cblancergsr]

yer i got mine for $99 from a auto electrician that we deal with through work

i dont think wreckers are a good idea too get any electronic gear from because the rain can corrode wires, connector and coils and then your back at square one

 

[chris123]

Cvap have them for 60 bux if i remember correctly

 

[CC_GSR93]

Looks like it is the idle controller, was just playing around with the car a bit and when I turn on the aircon, Idle revs drop to about 400 rpm.

 

[cblancergsr]

yes sounds like an idle stepper motor