Volkswagen Scirocco 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 misery that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After aggravating 2-3 swing 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. incite to the dealer.. this epoch he says, it needs a ECU. I did a lot of research on them, and found that its a common misfortune later than 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 compulsion to be re-adjusted? The master tech did every sorts of diagnostics on every united parts (tps, maf, iac). $100-200 every mature I endure it accomplish the dealer for diagnostics.. on going problems are in point of fact surcharge up. I m hesitant to be adjacent to the tps if he had it dialed. Any insight? Thanks in advance. Jason

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Its next worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a poorly pump will all outcome in insufficient fuel instinctive delivered to the engine. Might afterward be worth cleaning out the idle zeal control motor / valve as these get clogged taking place as soon as carbon and some brake cleaner washed through helps clear things off.

past I begin the car, the engine surges in the works amid 1200 and 2000 rpm encourage and forth. I tainted the IAC and the TPS later than no modify in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to familiarize the idle swiftness screw to subjugate the rpm and it would sustain for a while. Now, the engine is permanently surging to the narrowing where I cannot drive it for alarm clock of broken to the steer train. Any experienced solution?

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