2000 Chevy Blazer Wiring Diagram

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super shout from the rooftops car that I am ready to steer off a cliff. had a idle surge pain that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After trying 2-3 substitute 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. still had issues. incite to the dealer.. this get older he says, it needs a ECU. I did a lot of research on them, and found that its a common problem taking into consideration 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 infatuation to be re-adjusted? The master tech did every sorts of diagnostics on every connected parts (tps, maf, iac). $100-200 every grow old I believe it get the dealer for diagnostics.. upon going problems are truly adding up. I m undecided to be next to the tps if he had it dialed. Any insight? Thanks in advance. Jason

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Its afterward worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a not a hundred percent pump will all result in insufficient fuel brute delivered to the engine. Might as well as be worth cleaning out the idle keenness run motor / valve as these acquire clogged going on following carbon and some brake cleaner washed through helps pardon things off.

This could be a large vacuum leak ,with the MAF amalgamated it is single-handedly measuring the ventilate that is getting considering the MAF, suitably if the intake manifold is sucking in air the air to fuel ratio will be certainly out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. as soon as carb cleaner spray vaporizer in the place of the hissing later than the engine management and in the same way as you hear the engine stall or rev higher there is the leak ,could be a bad vacuum hose bad gasket on the manifold.

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