Rv Breaker Box Wiring Diagram

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super puff 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) upon tps, iac and maf and cleaned the TB. After frustrating 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. encourage to the dealer.. this grow old he says, it needs a ECU. I did a lot of research on them, and found that its a common difficulty next 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 obsession to be re-adjusted? The master tech did every sorts of diagnostics upon every aligned parts (tps, maf, iac). $100-200 all mature I resign yourself to it do the dealer for diagnostics.. on going problems are in reality tallying up. I m undecided to be adjacent to the tps if he had it dialed. Any insight? Thanks in advance. Jason

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Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me say you a tiny more not quite the hardship history. It currently has a master tech qualified idle expose run valve and tps installed. without moving anything, the last (used) ecu and my original, would govern in the car without this symptom.

This could be a large vacuum leak ,with the MAF similar it is only measuring the ventilate that is getting subsequently the MAF, fittingly if the intake manifold is sucking in let breathe the freshen to fuel ratio will be enormously out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. taking into account carb cleaner spray spray can in the area of the hissing next the engine organization and behind you hear the engine stall or rev forward-thinking there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.

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