Hummer H1 Wiring Diagram

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Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super spread around car that I am ready to drive off a cliff. had a idle surge burden that I researched online and did tests (per the manual) on tps, iac and maf and cleaned the TB. After infuriating 2-3 swap 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. nevertheless had issues. assist to the dealer.. this time he says, it needs a ECU. I did a lot of research upon them, and found that its a common trouble 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 infatuation to be re-adjusted? The master tech did every sorts of diagnostics upon all amalgamated parts (tps, maf, iac). $100-200 all era I take it realize the dealer for diagnostics.. on going problems are essentially adding up. I m undecided to adjoin the tps if he had it dialed. Any insight? Thanks in advance. Jason


I bought it in July, drove it house from LA (to Utah), and the problems started shortly after I got it home.Any additional assist you can have the funds for is appreciated. I don’t know what else to realize but say you will it help to the dealer. I know I’ve got the shop foreman operating upon it at the dealer, but I nevertheless air its pushed to the encourage as its pass and everyone loses in this situation.

This could be a large vacuum leak ,with the MAF partnered it is deserted measuring the air that is getting taking into consideration the MAF, therefore if the intake manifold is sucking in expose the let breathe to fuel ratio will be no question out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. similar to carb cleaner spray spray in the place of the hissing taking into account the engine executive and afterward you hear the engine stall or rev forward-looking there is the leak ,could be a bad vacuum hose bad gasket on the manifold.

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