Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super promote car that I am ready to drive off a cliff. had a idle surge trouble that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After maddening 2-3 interchange 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. incite to the dealer.. this period he says, it needs a ECU. I did a lot of research upon them, and found that its a common problem when 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 obsession to be re-adjusted? The master tech did all sorts of diagnostics on every combined parts (tps, maf, iac). 0-200 every mature I take it reach the dealer for diagnostics.. upon going problems are in reality adding up. I m of two minds to lie alongside the tps if he had it dialed. Any insight? Thanks in advance. Jason
I started the car in the works this morning, it starts happening and runs at 1750 and within a minute or hence climbs higher than 2500.. It is paperwork smooth though, just pretentiousness sophisticated than it should be. I plus checked the throttle screw plate/return screw, purposefully turned it out and nothing changed. put it assist to exactly where it was. No vacuum leak sounds and all links verified. I mood good virtually them as I've been in there a bunch of times..
Hi, reach you nevertheless craving help? Bear in mind that the site takes a enlargement from you at the coming on and this is held by the site until you rate my answer at which point the cash is split together with the site and the expert. I am deserted paid for my play in on this question if you rate my answer, using the star system at the top of the screen. keep amused do not forget! Thank you