Mazda 323 Car Stereo Wiring Diagram

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super push car that I am ready to drive off a cliff. had a idle surge misfortune 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. encourage to the dealer.. this times he says, it needs a ECU. I did a lot of research upon 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 all sorts of diagnostics on all combined parts (tps, maf, iac). $100-200 every become old I consent it complete the dealer for diagnostics.. upon going problems are really tally up. I m hesitant to adjoin 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 upon the let breathe flow meter and said it was good. behind I unplug it and direct the motor, the car runs severe and at 850ish. I can and no-one else guess that my supplementary rebuilt ecu has an issue, or the tps needs to be re-adjusted, or anyhow my maf has died in the midst of all this. I don't think the tps has that much run in the oscillate of rpm though? I think it unaccompanied adjusts it on 1k..

subsequent to I start the car, the engine surges occurring in the middle of 1200 and 2000 rpm incite and forth. I misrepresented the IAC and the TPS bearing in mind no change in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to become accustomed the idle eagerness screw to humiliate the rpm and it would sustain for a while. Now, the engine is for all time surging to the point where I cannot drive it for apprehension of damage to the drive train. Any experienced solution?

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