Irregular Idle + Check Engine Light ?

BADWGN · Post by **BADWGN** » Sun May 30, 2004 10:51 pm

yesterday after a 2km trip, i turned off the car, the turbo timer kept it going, and i went to a nearbvy shop. i heard the idle start to stutter every 2-3 seconds. when i returned to the car, it was still idling weird and i noticed the check engine light on the dash. im takin it 2 a mechanic for some testing 2day, but was wandering if any of u have had the same sort of problem ? blocked fuel line ? something cogged ? im stumped. i turned the car off and let it sit for 15 seconds, and then turned it back on, it was sweet as...

*PuZzLeD*

Cheers, Muzz

evolutionmovement · Post by **evolutionmovement** » Mon May 31, 2004 5:38 am

If the CEL came on, check the code. Likely the idle control valve.

Steve

BAC5.2 · Post by **BAC5.2** » Mon May 31, 2004 4:42 pm

Yep, IAC valve. I had the same thing happen to my car. Sometimes it'd run perfectly, but then it would idle at 2k RPM's and fluctuate between 1500 and 2k. Then it would stall out and not idle at all.

I wanted it fixed ASAP so I just got a new valve for $400 from the stealership.

BADWGN · Post by **BADWGN** » Tue Jun 01, 2004 1:19 pm

u guys rock, thanx for anwsering the q so fast. its going to the shop 1st thing in the morning to get the front pipe off the turbo, and the cat removed etc... 200 NZD for the work and parts = good deal.

hes gonna plug in the computer and see whats going on, but what your describing sounds like it

cheers all, cyaz.

LegacyT · Post by **LegacyT** » Sat Jun 05, 2004 3:15 am

Might also be the ignition relay.

Mark,

THAWA · Post by **THAWA** » Sat Jun 05, 2004 5:41 am

why dont you pull the code?

Post by **Legacy777** » Sat Jun 05, 2004 6:16 pm

THAWA wrote:why dont you pull the code?

BADWGN · Post by **BADWGN** » Mon Jun 07, 2004 11:56 am

Sorted man. I had the Cat removed and a nice front pipe put in place.

My mechanic fixed the IAC ? and changed the idle a little, it was high.

Cars running mint now...just got squeeky bely noise....

vrg3 · Post by **vrg3** » Mon Jun 07, 2004 1:24 pm

How did your mechanic change the idle?

Idle on our cars isn't meant to be adjustable... a lot of mechanics don't realize that idle is computer-controlled on modern Subarus (I even had one mechanic once tell me the IAC valve was "just a sensor" and that you're supposed to adjust the throttle stop screw).

Subaru's official position is that if you move any of the screws that control throttle plate or IAC valve calibration you're supposed to replace the part.

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Irregular Idle + Check Engine Light ?

Irregular Idle + Check Engine Light ?