The AUSubaru.com.au Forums

Posted: **Wed Jul 02, 2008 11:29 am**

G'day all,

I'm new here and new to Subaru's.

Just bought a 91 model GX Wagon and it has a wierd idle.

While sitting at the lights ect idling the idle will go up and down from about 1500 revs back to normal idle speed.

Anyone have any idea on what it could be?? Common problem?? Electrical or not??

Any help would be greatly appreciated.

Cheers,

Tommo.

Posted: **Wed Jul 02, 2008 11:37 am**

Welcome aboard
probably have a look here

showthread.php?t=8405&highlight=throttl ... ion+sensor

Posted: **Wed Jul 02, 2008 12:37 pm**

Thanks mate.

But not sure if that is the problem as it happens when idling and the idle speed fluctuates

Posted: **Wed Jul 02, 2008 7:07 pm**

Seems to do it more in park or neutral.

Revs just go up and down constantly...

Any ideas??

Posted: **Wed Jul 02, 2008 7:10 pm**

sounds like you should run some SUEC (Subaru Upper Engine Cleaner) through it after cleaning out the IACV (Idle Air Control Valve).

Posted: **Wed Jul 02, 2008 7:26 pm**

Ah righto mate.

Is all of that in the manual?? Or a rundown on how to do it on here??

Posted: **Wed Jul 02, 2008 7:39 pm**

http://www.ozliberty.com/forums/showthread.php?t=9877

prolly the best thing i know of.

if you know what your doing under a bonnet itll be easy but take a little time on the EJ22's

Posted: **Wed Jul 02, 2008 8:47 pm**

Thanks mate. I will give it a go.

Very weird idle though, considering it fluctuates like someone is slowly reving the car up to about 1500 revs then backs off again.

The AUSubaru.com.au Forums

Idle/electrical??

Idle/electrical??