Idle Issue

115

Asked by May 13, 2011 at 04:02 PM about the 1992 Subaru Loyale 4 Dr STD 4WD Wagon

Question type: Maintenance & Repair

Like stated, 1992 Subaru Loyale 4 door wagon with 4 wheel drive.

I just recently put some parts in the car. I put new ball joints, exhaust manifold gaskets, and a new injector on the TBI. Ever since I did all of that, the car will not idle well sometimes. (She never did idle smooth, but it was a consistant not smooth.)

Sometimes when you push in the clutch to roll up to a stop sign or street light, it will idle fine. It will vary a bit, but it idles. (It did this before to) Sometimes though it will all of a sudden just drop and the car shakes horribly and if you don't feed it a little throttle, it will die. It starts right back up again and will sometimes idle or will sometimes fall flat again.

I did not take the TBI off, I just removed the top plate, removed the old injector, and put the new one in. The new one came with a new o-ring so that was new also. It is strange how it will idle sometimes and not others. It seems like it will idle better cold then warm which leads me to believe that it is getting too much fuel, but why only sometimes?

Or could there have been a bigger problem at bay and by putting a new injector in, now I have another issue? I was going to run through some tests on that air control valve (or whatever it is called) to see if it falls within specs and I was going to just go over everything again to make sure I didn't accidently disconnect a vacuum line or something.

Any other advice or suggestions? I have been driving it like this for about a week because my girlfriend just bought a 97 GMC Jimmy and I have spending my time on that and neglecting my Suby!

2 Answers

5,695

sounds like a vaccume leak to me.

1 out of 1 people think this is helpful.
115

Yea, I feel like a newb! :) In returning everything back to normal, I must have knocked the PCV tube off from the intake tube. My guess is that I must have nailed it when I threw the spare tire back under the hood and it pulled it off. Didn't notice it then, but as soon as I opened the hood today, it stuck out like a sore thumb. Got that back on and it runs very nice now. Now, back to the Jimmy. Got door hinge pins to repair, new fuel filter, oil change, thermostat, and new pinion seal. Thanks Nick for responding!

1 out of 1 people think this is helpful.

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