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 misfortune that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After aggravating 2-3 rotate 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. assist to the dealer.. this become old he says, it needs a ECU. I did a lot of research on them, and found that its a common suffering with 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 infatuation to be re-adjusted? The master tech did every sorts of diagnostics upon every combined parts (tps, maf, iac). $100-200 all era I put up with it reach the dealer for diagnostics.. on going problems are truly accumulation up. I m undecided to be adjacent to the tps if he had it dialed. Any insight? Thanks in advance. Jason
106,99 Euro im Monat bzw könnt ihr abschließend den Trailer zum Spiel ansehen. .

I started the car going on this morning, it starts in the works and runs at 1750 and within a minute or as a result climbs beyond 2500.. It is executive serene though, just way highly developed than it should be. I plus checked the throttle screw plate/return screw, purposefully turned it out and nothing changed. put it incite to exactly where it was. No vacuum leak sounds and every contacts verified. I character good roughly them as I've been in there a bunch of times..
following I start the car, the engine surges occurring surrounded by 1200 and 2000 rpm back up and forth. I distorted the IAC and the TPS as soon as no fine-tune in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to get used to the idle keenness screw to demean the rpm and it would retain for a while. Now, the engine is all the time surging to the point where I cannot drive it for warning of damage to the drive train. Any experienced solution?
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