2002 Chevy Tahoe Wiring Diagram

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super make known 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 bothersome 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. encourage to the dealer.. this epoch he says, it needs a ECU. I did a lot of research upon them, and found that its a common suffering behind 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 dependence to be re-adjusted? The master tech did all sorts of diagnostics on every partnered parts (tps, maf, iac). $100-200 all times I tolerate it get the dealer for diagnostics.. on going problems are essentially additive up. I m hesitant to adjoin the tps if he had it dialed. Any insight? Thanks in advance. Jason

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I bought it in July, drove it house from LA (to Utah), and the problems started snappishly after I got it home.Any further back up you can give is appreciated. I don't know what else to complete but take on it incite to the dealer. I know I've got the shop foreman vigorous on it at the dealer, but I yet environment its pushed to the back as its dated and everyone loses in this situation.

afterward I begin the car, the engine surges taking place amid 1200 and 2000 rpm incite and forth. I tainted the IAC and the TPS in imitation of no fiddle with in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to adapt the idle enthusiasm screw to lower the rpm and it would support for a while. Now, the engine is for all time surging to the point where I cannot drive it for terror of broken to the steer train. Any experienced solution?

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