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The open loop issue is no longer happening. I had a prom from a camaro in the ecm and I switched back to the original.

Replaced the throttle body today. Still idles high. Found the throttle is not closing all the way when the motor is running. Readjusted the throttle cable to ensure it was not too tight. Turn the motor off and it closes completely. Start the motor back up and it hangs up just enough to...

If you use chrome make sure you use a good grade of threadlock. Chrome bolts have a tendency to loosen themselves.

Susurban Bolt. They are located in Warren and Clinton twp.,michigan Google them Also ACE hardware.

Clean all your grounds. I cleaned the fusable links on my 92 also. Might be an easy fix.

My guess is there is a short in the drivers door wireing where it articulates as you open and close the door. If it was the fob the battery in it would have gone dead pretty quick.

Isn't the 89 250 hp and the LT1 300 hp? Gotta wonder if the LT1 is running right..

OK I missed the one by the heater on the bell housing. Did get the 2 on the other side. How the he.. do you get to that one without pulling the motor?

Yea Junk, every one I can find. And I have the bloody knuckles it required too. 2 by the bell housing,one behind the battery and one from the air conditioning by the passenger inner fender. Do you know of any others?

Today I checked the throttle body shaft for play. When closed it seems solid. When open half way it wiggles about .020...not good. Should have checked it better when I cleaned it. New one, 52mm is on order.

Engage and release the hand brake a couple of times. If it never gets used it might need some exercise. You can try disconnecting the Negative battery cable for 30 seconds and see if that resets your computer and the light goes out.

Vacuum leak at the butterfly shaft. I'm running out of possibilities. When its cold it idles at 1200-1500 rpm. When it's warmed up as I come to a stop it idles at about 1000 rpm till completely stopped then it slowly drops down to about 700. Other than this issue it is running perfect.;shrug

Yes it was. Thank you.

Using my new scan tool the ac pressure (line 02) is at 69 lbs with the air off. Is this normal? Can't find this in the FSM. Probably is in there but I have spent a great deal of time searching with no luck. The system was recharged with r134 at some point before I owned the car. Pressure is...

Replaced the injectors with Bosch. What a difference. About half of the o rings on the old ones were shot. Still had idle issues. FSM said check the A.I.R system. Blown fuse at the air pump. Had to pull the pump and fix the impeller as it was stuck. Minor corrosion but enough to stop the...

Ditto

Here is my 2 cents worth. It sounds like the master cylinder is not releasing properly. That can lock up the brakes and cause these symptoms. After the brakes cooled down they finally released.Try bleeding them out and see if it helps.

This is an LT1 and as far as I can tell there is no MAF. Vacuum is rock steady and over 20 Hg. The Idle is low when I first start it. Then half a mile down the road at a stop sign it goes up to about 1400. After driving another couple of miles it drops down to about 800. Sometimes if I tap...

I have been working with almost the identical issue of varying idle. Replaced the injectors with Bosch this week. The o rings on the old ones were shot. This could account for some of the vacuum leak. Car does run MUCH better but still idles wherever it feels like at the moment. (perhaps...

If you are hearing the selonoid when you push the lock button and the key wont lock the door then it is probably the lock itself is gummed up. Take the panel off and see what is hanging up.