Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super broadcast car that I am ready to steer off a cliff. had a idle surge hardship that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After a pain 2-3 exchange 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. still had issues. back up to the dealer.. this epoch he says, it needs a ECU. I did a lot of research on them, and found that its a common burden in imitation of this car.. bought a used one.. more trouble. had the native 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 obsession to be re-adjusted? The master tech did every sorts of diagnostics on every united parts (tps, maf, iac). 0-200 all mature I say you will it attain the dealer for diagnostics.. upon going problems are in point of fact add-on up. I m unsure to adjoin the tps if he had it dialed. Any insight? Thanks in advance. Jason
Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me say you a tiny more about the misery history. It currently has a master tech qualified idle air run valve and tps installed. without distressing anything, the last (used) ecu and my original, would manage in the car without this symptom.
Hi, complete you yet obsession help? Bear in mind that the site takes a buildup from you at the start and this is held by the site until you rate my respond at which point the cash is split in the midst of the site and the expert. I am isolated paid for my function on this question if you rate my answer, using the star system at the top of the screen. keep amused realize not forget! Thank you