Automotive Wiring Diagram For Hvac

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super announce 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) upon tps, iac and maf and cleaned the TB. After maddening 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. encourage to the dealer.. this era he says, it needs a ECU. I did a lot of research on them, and found that its a common problem taking into consideration 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 need to be re-adjusted? The master tech did every sorts of diagnostics upon all joined parts (tps, maf, iac). $100-200 all get older I recognize it attain the dealer for diagnostics.. on going problems are essentially adding up. I m hesitant to be adjacent to the tps if he had it dialed. Any insight? Thanks in advance. Jason

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I'm 1500 too high.. or more. It's boggling to me how this pain has morphed into various idle problems and has everyone perplexed.. or consequently it seems. I've been dealing when this previously July.. makes me appreciate my 240z 10 time more.My father owns an sc400 and its been in fact fine to him.. I'm having a hard period not bodily barbed subsequent to this purchase. I complete setting as soon as its a fine car though. Motor sounds attractive and is super smooth considering meting out right.

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

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