Wiring Diagram Led Light Bar

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 pain that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After maddening 2-3 every second 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. support 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 problem later than this car.. bought a used one.. more trouble. had the indigenous 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 dependence to be re-adjusted? The master tech did all sorts of diagnostics upon every united parts (tps, maf, iac). $100-200 all era I take it attain the dealer for diagnostics.. upon going problems are in point of fact extra up. I m in two minds to be adjacent to 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 little more approximately the trouble history. It currently has a master tech approved idle expose run valve and tps installed. without disturbing anything, the last (used) ecu and my original, would govern in the car without this symptom.

I'm reviewing your question now, and will pronounce back bearing in mind your answer ASAP. Rgds Greg. What deviation codes reach you have. Does the engine manage in the same way as the MAF disconnected. in the same way as the loud hissing sound this could be your problem. This could be a large vacuum leak ,with the MAF amalgamated it is lonesome measuring the expose that is getting later the MAF, so if the intake manifold is sucking in expose the ventilate to fuel ratio will be enormously out and cause the engine to stal

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