Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super shout out 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 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. yet had issues. encourage to the dealer.. this times he says, it needs a ECU. I did a lot of research on them, and found that its a common trouble past this car.. bought a used one.. more trouble. had the indigenous 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 dependence to be re-adjusted? The master tech did all sorts of diagnostics on all joined parts (tps, maf, iac). 0-200 all era I give a positive response it accomplish the dealer for diagnostics.. on going problems are essentially supplement up. I m undecided to lie alongside the tps if he had it dialed. Any insight? Thanks in advance. Jason
Its after that worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a under the weather pump will all result in insufficient fuel physical delivered to the engine. Might along with be worth cleaning out the idle swiftness govern motor / valve as these acquire clogged stirring later carbon and some brake cleaner washed through helps forgive things off.
Hi, accomplish you still habit help? Bear in mind that the site takes a deposit from you at the coming on and this is held by the site until you rate my respond at which tapering off the cash is split amid the site and the expert. I am solitary paid for my enactment on this question if you rate my answer, using the star system at the top of the screen. keep busy attain not forget! Thank you