idle dropping????

[offroadsubaruguy]

every once in awhile my idle drops and my car tries to die. it jumps back up before the car dies, but it kinda bugs me...... any ideas? its a 90 legacy wagon, with a manual, and a weapon r intake setup..... it has been going on for a while, even before the intake was installed, but more often now that the intake is on.... im stuck here, im outta ideas.....

[frag]

Dont want to make an obsession of it, but it could be the Idle air control valve acting up. After 15 years, maybe it needs a cleaning.

Just an idea.

[RallyKeith]

I would guess it's your MAF. IIRC the weapon R intakes are oiled cloth filters. If you had a questionable MAF to begin with a freshly/over oiled filter could be agrivating it. I don't know how many u-pull it junk yards you have around, but I'd try grabbing one at a yard and swapping it in. I believe you can only get one from a 90 or 91 though.

 

Keith

[offroadsubaruguy]

thanks for your imput guys, i'll try both of em.... where is the idle control valve located?

[frag]

thanks for your imput guys, i'll try both of em.... where is the idle control valve located?

 

Right next to the throttle body. Find a one inch diameter hose that comes from the main air duct, it connects to it. I would be more precise but I know your model year does'nt have an IAC valve identical to mine.

[offroadsubaruguy]

thanks again........we'll see if that works.