Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super puff 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 aggravating 2-3 vary 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. assist to the dealer.. this time he says, it needs a ECU. I did a lot of research on them, and found that its a common suffering as soon as 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 compulsion to be re-adjusted? The master tech did every sorts of diagnostics on every joined parts (tps, maf, iac). 0-200 every period I undertake it realize the dealer for diagnostics.. on going problems are truly adding up up. I m unsure to be next to the tps if he had it dialed. Any insight? Thanks in advance. Jason
I bought it in July, drove it house from LA (to Utah), and the problems started tersely after I got it home.Any extra assist you can manage to pay for is appreciated. I don't know what else to accomplish but give a positive response it back up to the dealer. I know I've got the shop foreman in action upon it at the dealer, but I yet vibes its pushed to the help as its old and everyone loses in this situation.
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