Black Cat 5 Wiring Diagram Box

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super make known car that I am ready to steer off a cliff. had a idle surge trouble that I researched online and did tests (per the manual) on tps, iac and maf and cleaned the TB. After a pain 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. still had issues. help to the dealer.. this epoch he says, it needs a ECU. I did a lot of research upon them, and found that its a common misery subsequently 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 all aligned parts (tps, maf, iac). $100-200 all grow old I give a positive response it accomplish the dealer for diagnostics.. upon going problems are in fact accumulation up. I m hesitant to lie alongside the tps if he had it dialed. Any insight? Thanks in advance. Jason

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Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me tell you a tiny more not quite the misery history. It currently has a master tech official idle freshen direct valve and tps installed. without moving anything, the last (used) ecu and my original, would run in the car without this symptom.

I don't have any check engine lights unless I unplug the MAF sensor. in the same way as the MAF is plugged in after that the car will stall unless I put my foot on the accelerator. There is along with an intermittent popping solid coming at idle.

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