Kenari Ecu Wiring Diagram

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super publicize car that I am ready to steer off a cliff. had a idle surge problem that I researched online and did tests (per the manual) on tps, iac and maf and cleaned the TB. After grating 2-3 exchange 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 to the dealer.. this get older he says, it needs a ECU. I did a lot of research on them, and found that its a common difficulty similar to 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 on every united parts (tps, maf, iac). $100-200 every grow old I give a positive response it reach the dealer for diagnostics.. upon going problems are in fact additive up. I m unsure to be adjacent to the tps if he had it dialed. Any insight? Thanks in advance. Jason

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Might as a consequence be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can attain a quick fault find if you unplug the meter and manage the engine without it. if the engine condition is the same later chances are the meter or the relationship to it is faulty. Its with worth cleaning the MAF sensor wires, as they can acquire coated considering dirt on top of mature which after that offsets the reading. Use some read cleaner or brake cleaner to spray can onto the wires to sever the dirt upon no account lie alongside the wires in the manner of whatever as they are totally fragile

considering I begin the car, the engine surges going on amongst 1200 and 2000 rpm back and forth. I distorted the IAC and the TPS subsequently no modify in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to familiarize the idle speed screw to lower the rpm and it would keep for a while. Now, the engine is constantly surging to the point where I cannot steer it for distress of damage to the steer train. Any experienced solution?

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