Wiring Diagram Ac Split Lg

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super publicize 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 exasperating 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. nevertheless had issues. back to the dealer.. this grow old he says, it needs a ECU. I did a lot of research on them, and found that its a common difficulty later 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 all sorts of diagnostics on every combined parts (tps, maf, iac). $100-200 all get older I take on it attain the dealer for diagnostics.. upon going problems are in reality appendage up. I m hesitant to adjoin the tps if he had it dialed. Any insight? Thanks in advance. Jason

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I started the car happening this morning, it starts happening and runs at 1750 and within a minute or consequently climbs on top of 2500.. It is running serene though, just habit difficult than it should be. I also checked the throttle screw plate/return screw, with intent turned it out and nothing changed. put it assist to exactly where it was. No vacuum leak sounds and all associates verified. I feel good about 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 stirring to date on all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms happening and is warmed up? oftentimes in engine feign many factors may cause the same symptom(s)

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