1992 Chev Cavalier Malfunction - Engine

Question: I have a 1992 chevrolet cavalier 2.2 liter. I have had a very recent problem. The vehicles life started with me at 55, 000 miles. I drove it for about two years as a commuter on the highway. Car now has 120, 000 miles. The car then was replaced and stored in a storage unit for about two years. The car never gave me a problem other then the lock up converter which was fixed. I also had to have head shaved and minor other fixits. I always started car every month or so as car was locked in a storage unit down the road. It always started and ran fine. Now as of last two months, the vehicle has sat at my parents house outside. Out of knowhere, the vehicle would not start. The vehicle is an automatic. The car as of a few days ago would not not idle. Car turns over and wants to start but won't hold an idle. My father sprayed ether in intake and car then would try harder to idle but continues to die. The weird thing is the accelerator pedal when pressed, would not work properly. It would only affect the idle when fully pressed to the floor at that peak point. So, when sprayed with ether, and if I repetedly pushed pedal to floor, car would idle but only if i kept pressing gas to floor repetedly. (flooding too much gas into motor)Otherwise car would die. I had a mechanic come over to try numerous tests on it. He plugged in his Tech 3 to it, and came up with absolutely no codes he said. He jumped fuel pump relay to verify pump and all that was functioning, and to make sure relay was working properly. Fuel pump works fine. He removed fuel rail also to check the fuel flow. Fuel all seems fine. He came up with at end of day that we needed to locate a new brain. Well I landed one today, and plugged it in. Car still did not idle but I somehow regained full use of the accelerator pedal working. So, I could then just hold pedal down and cause car to idle. Yet car would still die if I let off gas. Then after resetting ecu once again, the car ran and idled fine. I drove it a few miles from a cold start without warming it up first. I thought my problems were possibly over. Now tonight after dark I went out there, and car will idle and start up just fine. I can rev car with it in park but as soon as I put it in drive or reverse and barely touch the gas pedal, she dies. But only from a cold start. I then let car set there and idle in park for 15 minutes, jumped in, and drove her off once again for a mile without a problem. So now I'm stumped. The weather here is kinda humid and at night cool. Some rain here and there. The car did have a problem a few years ago with it not running in the rain, car would not idle. I unfortunitely do not remember what it was that was fixed though. Car has ran fine though like I said until now again. It doesn't seem like same problem. Thats where I am right now. I have two days for most part to get this fixed before i have to leave the state and head to chicago for a while. Any help would be greatful. Thanks in advance.

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Technican: Hello, When all the work on the fuel rail was going on did anyone flush the injectors? If the fuel was over 30 days old and did not have a fuel stablilizer added to it at the time of storage it needs to be replaced with fresh fuel and I recommend a new fuel filter. Are the throttle body bore and butterfly valve clean?

Owner: No the gas is not old really. A week old tops. Butterfly valve is fine. There has got to be a totally seperate issue.

Technican: All right, I'll get into the Mitchell 1 Auto Repair Data Base and see what they offer concerning this symptom. I'm wondering if the computer is getting incorrect readings from a coolant temp sensor or if there is a cold start valve not working....something that leans the fuel mix too soon...there should be a trouble chart and I'll get it for you. Do you have a fax number? Any sign of rodent nesting or wiring chewed that you can see? I remember you said there were no codes. Can you get the use of a scanner so you can monitor the emissions sensors? It would be alot of help when compared to a code reader.

Owner: I appreciate all your help . Well I replaced ignition modual and coil packs yesterday afternoon. The car started right up once again. I drove it down the road, It died on me like 4 times, and I got stranded of course. It decided then it did not want to start anymore except sometimes here and there. The starter cranks over but motor never fires up. We grounded out the plugs on block and cranked her over to check if spark and all the basics were definitely working properly. And to our surprise, when we removed the wire from cylinder 2 and grounded it, the car fired right up, and it sounded great? Same thing with the 4th cylinder I believe. Now I'm in the process of flip flopping in new coil packs again just incase something is weird with them. The one consistent thing with this car is that when we do finally get her fired up here and there, the vehicle will only temporarily let you put gas through it. It just seems like the gas pedal being pushed down, kills it somehow???? Thanks.

Technican: You sure could use a scanner to monitor the sensors feedback values. Do you have a fax? I have a list of suggestions from the data base.

Owner: I do not have a fax. I just had vehicle towed away to a dealership. Thanks for your help .

Technican: Do you wish to close this question? If you feel you should have your money refunded you'll need to write to Mr., Site Administrator, .com and make your request known. Should you decide to "accept" my answer you may click on "OK to pay mechanic" and I will be paid for my efforts. Its your call. I wasn't much help to you. Thanks!

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