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 problem that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After grating 2-3 stand-in 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. put up to to the dealer.. this epoch he says, it needs a ECU. I did a lot of research upon them, and found that its a common difficulty considering 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 infatuation to be re-adjusted? The master tech did all sorts of diagnostics on every aligned parts (tps, maf, iac). 0-200 all mature I believe it reach the dealer for diagnostics.. on going problems are in reality surcharge up. I m unsure to touch the tps if he had it dialed. Any insight? Thanks in advance. Jason
Its as a consequence worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a ill pump will all repercussion in insufficient fuel innate delivered to the engine. Might furthermore be worth cleaning out the idle keenness control motor / valve as these acquire clogged up considering carbon and some brake cleaner washed through helps forgive things off.
Hi, realize you nevertheless infatuation help? Bear in mind that the site takes a lump from you at the arrival and this is held by the site until you rate my reply at which tapering off the cash is split in the middle of the site and the expert. I am unaided paid for my perform on this question if you rate my answer, using the star system at the summit of the screen. make smile do not forget! Thank you