Surface Wiring Channel

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super present car that I am ready to steer off a cliff. had a idle surge burden that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After grating 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. nevertheless had issues. put up to to the dealer.. this period he says, it needs a ECU. I did a lot of research on them, and found that its a common suffering next 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 upon every connected parts (tps, maf, iac). $100-200 all epoch I recognize it realize the dealer for diagnostics.. on going problems are truly toting up up. I m undecided to touch the tps if he had it dialed. Any insight? Thanks in advance. Jason

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I bought it in July, drove it home from LA (to Utah), and the problems started sharply after I got it home.Any supplementary encourage you can manage to pay for is appreciated. I don't know what else to complete but acknowledge it help to the dealer. I know I've got the shop foreman dynamic on it at the dealer, but I still vibes its pushed to the back as its old and everyone loses in this situation.

Hello the TPS does have an effect on switching the car into idle mode thus I'd suggest to create definite the throttle dish is 100% closed and not slightly grounded behind carbon. and then familiarize the TPS therefore that the IDL pin is continuous to the E2 fix similar to the throttle is closed, and way in circuit taking into account the throttle is just cracked. Don't upset virtually any voltages, the IDL right to use is the truly important one.

Image Schematics for surface wiring channel

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