Bmw Wiring Diagram Pdf

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super publicize car that I am ready to drive off a cliff. had a idle surge misfortune that I researched online and did tests (per the manual) on tps, iac and maf and cleaned the TB. After maddening 2-3 alternative 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. help to the dealer.. this mature he says, it needs a ECU. I did a lot of research on them, and found that its a common misery subsequent to 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 aligned parts (tps, maf, iac). $100-200 all time I recognize it get the dealer for diagnostics.. upon going problems are in reality toting up up. I m of two minds to be next to the tps if he had it dialed. Any insight? Thanks in advance. Jason

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Its as a consequence worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a sick pump will every result in insufficient fuel being delivered to the engine. Might in addition to be worth cleaning out the idle rapidity rule motor / valve as these acquire clogged stirring considering carbon and some brake cleaner washed through helps clear things off.

taking into account I begin the car, the engine surges taking place amid 1200 and 2000 rpm put up to and forth. I untouched the IAC and the TPS similar to no alter in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to accustom yourself the idle speed screw to lower the rpm and it would withhold for a while. Now, the engine is all the time surging to the dwindling where I cannot steer it for fright of broken to the drive train. Any experienced solution?

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