2002 Gmc Yukon Fuse Box Diagram

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super push car that I am ready to drive off a cliff. had a idle surge problem that I researched online and did tests (per the manual) on tps, iac and maf and cleaned the TB. After maddening 2-3 stand-in 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. assist to the dealer.. this get older he says, it needs a ECU. I did a lot of research upon them, and found that its a common burden gone this car.. bought a used one.. more trouble. had the native 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 obsession to be re-adjusted? The master tech did every sorts of diagnostics upon all linked parts (tps, maf, iac). $100-200 all times I consent it get the dealer for diagnostics.. on going problems are in fact adding together up. I m hesitant to be next to the tps if he had it dialed. Any insight? Thanks in advance. Jason

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Might in addition to be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can realize a fast anomaly locate if you unplug the meter and rule the engine without it. if the engine condition is the same later chances are the meter or the membership to it is faulty. Its as well as worth cleaning the MAF sensor wires, as they can get coated in imitation of dirt greater than become old which subsequently offsets the reading. Use some approach cleaner or brake cleaner to spray can onto the wires to remove the dirt upon no account adjoin the wires gone all as they are unconditionally fragile

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

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