Ford Wiring Diagrams Radio Escape Free

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super publicize 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 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 mature he says, it needs a ECU. I did a lot of research upon them, and found that its a common hardship like this car.. bought a used one.. more trouble. had the indigenous 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 need to be re-adjusted? The master tech did all sorts of diagnostics on every related parts (tps, maf, iac). $100-200 all times I tolerate it accomplish the dealer for diagnostics.. on going problems are in point of fact additive up. I m in two minds to adjoin the tps if he had it dialed. Any insight? Thanks in advance. Jason

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I did re-check them tho. The master tech did extensive tests on the air flow meter and said it was good. with I unplug it and direct the motor, the car runs argumentative and at 850ish. I can unaccompanied guess that my additional rebuilt ecu has an issue, or the tps needs to be re-adjusted, or somehow my maf has died in the midst of all this. I don't think the tps has that much control in the substitute of rpm though? I think it only adjusts it all but 1k..

This could be a large vacuum leak ,with the MAF amalgamated it is without help measuring the freshen that is getting next the MAF, for that reason if the intake manifold is sucking in expose the let breathe to fuel ratio will be completely out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. when carb cleaner vaporizer spray in the place of the hissing taking into consideration the engine giving out and past you hear the engine stall or rev innovative there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.

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