Electrical Wiring Harness Connectors

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 difficulty that I researched online and did tests (per the manual) on tps, iac and maf and cleaned the TB. After aggravating 2-3 different 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. yet had issues. assist to the dealer.. this epoch he says, it needs a ECU. I did a lot of research on them, and found that its a common trouble next 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 infatuation to be re-adjusted? The master tech did every sorts of diagnostics upon every aligned parts (tps, maf, iac). $100-200 all mature I bow to it get the dealer for diagnostics.. upon going problems are essentially accumulation up. I m of two minds to be next to the tps if he had it dialed. Any insight? Thanks in advance. Jason


I did re-check them tho. The master tech did extensive tests upon the freshen flow meter and said it was good. subsequent to I unplug it and run the motor, the car runs rough and at 850ish. I can solitary guess that my extra 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 direct in the substitute of rpm though? I think it without help adjusts it on 1k..

I'm reviewing your question now, and will declare incite gone your answer ASAP. Rgds Greg. What aberration codes reach you have. Does the engine govern as soon as the MAF disconnected. in imitation of the loud hissing solid this could be your problem. This could be a large vacuum leak ,with the MAF similar it is abandoned measuring the ventilate that is getting gone the MAF, thus if the intake manifold is sucking in let breathe the expose to fuel ratio will be certainly out and cause the engine to stal

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