Chevy Cobalt Wiring Diagram

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super publicize car that I am ready to steer off a cliff. had a idle surge trouble that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After irritating 2-3 swing used IAC s, I took it to the master tech at lexus. He said it was the IAC valve. He tried my used ones.. and finally a rebuilt one. yet had issues. support to the dealer.. this times he says, it needs a ECU. I did a lot of research upon them, and found that its a common suffering later than this car.. bought a used one.. more trouble. had the original one rebuilt by a specialist.. and that s where I am at now.. Put it in tonight and the car idles at 2k rpm. Does the TPS craving to be re-adjusted? The master tech did every sorts of diagnostics on all combined parts (tps, maf, iac). $100-200 every times I bow to it do the dealer for diagnostics.. upon going problems are essentially totaling up. I m in two minds to lie alongside the tps if he had it dialed. Any insight? Thanks in advance. Jason

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Might with be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can get a quick deformity locate if you unplug the meter and manage the engine without it. if the engine condition is the thesame later chances are the meter or the link to it is faulty. Its moreover worth cleaning the MAF sensor wires, as they can get coated as soon as dirt higher than era which subsequently offsets the reading. Use some gain access to cleaner or brake cleaner to spray onto the wires to separate the dirt on no account be next to the wires when everything as they are totally fragile

I don't have any check engine lights unless I unplug the MAF sensor. once the MAF is plugged in after that the car will stall unless I put my foot on the accelerator. There is plus an intermittent popping unassailable coming at idle.

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