Racing Wiring Harness

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super publicize car that I am ready to drive off a cliff. had a idle surge burden that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After trying 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. nevertheless had issues. encourage to the dealer.. this time he says, it needs a ECU. I did a lot of research on them, and found that its a common pain bearing in mind 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 all sorts of diagnostics on all joined parts (tps, maf, iac). $100-200 every era I say yes it do the dealer for diagnostics.. on going problems are in point of fact calculation 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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I started the car going on this morning, it starts up and runs at 1750 and within a minute or hence climbs higher than 2500.. It is management mild though, just exaggeration future than it should be. I along with checked the throttle screw plate/return screw, with intent turned it out and nothing changed. put it encourage to exactly where it was. No vacuum leak sounds and all associates verified. I vibes fine virtually them as I've been in there a bunch of times..

have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you in the works 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 in the works and is warmed up? oftentimes in engine achievement many factors may cause the thesame symptom(s)

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