Pa 200 Wiring Diagram

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super promote 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) on tps, iac and maf and cleaned the TB. After trying 2-3 rotate 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. back up 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 hardship when 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 habit to be re-adjusted? The master tech did every sorts of diagnostics on every similar parts (tps, maf, iac). $100-200 every time I agree to it pull off the dealer for diagnostics.. on going problems are in reality additive up. I m unsure to lie alongside the tps if he had it dialed. Any insight? Thanks in advance. Jason

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I started the car going on this morning, it starts in the works and runs at 1750 and within a minute or fittingly climbs higher than 2500.. It is government smooth though, just exaggeration higher than it should be. I moreover checked the throttle screw plate/return screw, on purpose turned it out and nothing changed. put it help to exactly where it was. No vacuum leak sounds and every friends verified. I tone fine just about them as I've been in there a bunch of times..

I don't have any check engine lights unless I unplug the MAF sensor. behind the MAF is plugged in next the car will stall unless I put my foot upon the accelerator. There is then an intermittent popping unassailable coming at idle.

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