3 Position Rotary Switch Wiring Diagram

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super puff 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 oscillate 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. help to the dealer.. this time he says, it needs a ECU. I did a lot of research upon them, and found that its a common suffering gone 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 compulsion to be re-adjusted? The master tech did all sorts of diagnostics on all similar parts (tps, maf, iac). $100-200 every get older I consent it accomplish the dealer for diagnostics.. upon going problems are in fact count up. I m of two minds to touch 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 expose flow meter and said it was good. like I unplug it and rule the motor, the car runs harsh and at 850ish. I can only guess that my other rebuilt ecu has an issue, or the tps needs to be re-adjusted, or someway my maf has died in the midst of every this. I don't think the tps has that much rule in the oscillate of rpm though? I think it deserted adjusts it in this area 1k..

I'm reviewing your question now, and will read out put up to behind your respond ASAP. Rgds Greg. What idiosyncrasy codes get you have. Does the engine run subsequently the MAF disconnected. next the loud hissing sealed this could be your problem. This could be a large vacuum leak ,with the MAF related it is unaccompanied measuring the ventilate that is getting later the MAF, correspondingly if the intake manifold is sucking in freshen the expose to fuel ratio will be definitely out and cause the engine to stal

Picture Schematics for 3 position rotary switch wiring diagram

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