1992 Chevy 6 5 Turbo Wiring Diagram

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super spread around car that I am ready to steer off a cliff. had a idle surge suffering that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After infuriating 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. support to the dealer.. this get older he says, it needs a ECU. I did a lot of research upon them, and found that its a common hardship gone 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 obsession to be re-adjusted? The master tech did all sorts of diagnostics upon all similar parts (tps, maf, iac). $100-200 all period I tolerate it get the dealer for diagnostics.. on going problems are essentially adding up. I m in two minds to touch 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 say you a tiny more roughly the trouble history. It currently has a master tech endorsed idle freshen manage valve and tps installed. without heartwarming anything, the last (used) ecu and my original, would direct in the car without this symptom.



have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you taking place to date on every maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms taking place and is warmed up? oftentimes in engine take steps many factors may cause the thesame symptom(s)



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