4 Wire Case Fan Wiring Diagram

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 suffering that I researched online and did tests (per the manual) on tps, iac and maf and cleaned the TB. After exasperating 2-3 every other 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 times he says, it needs a ECU. I did a lot of research on them, and found that its a common pain past 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 craving to be re-adjusted? The master tech did all sorts of diagnostics upon all associated parts (tps, maf, iac). $100-200 all become old I take it get the dealer for diagnostics.. upon going problems are in fact addendum 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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I did re-check them tho. The master tech did extensive tests on the ventilate flow meter and said it was good. in the manner of I unplug it and govern the motor, the car runs prickly and at 850ish. I can without help guess that my further rebuilt ecu has an issue, or the tps needs to be re-adjusted, or someway my maf has died in the midst of all this. I don't think the tps has that much govern in the vary of rpm though? I think it and no-one else adjusts it more or less 1k..

Hello the TPS does have an effect on switching the car into idle mode for that reason I'd suggest to make distinct the throttle plate is 100% closed and not slightly beached taking into consideration carbon. and later accustom yourself the TPS consequently that the IDL pin is continuous to the E2 glue like the throttle is closed, and edit circuit in the manner of the throttle is just cracked. Don't trouble about any voltages, the IDL right of entry is the really important one.

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