Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super puff car that I am ready to steer off a cliff. had a idle surge pain that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After infuriating 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. nevertheless had issues. put up to to the dealer.. this times he says, it needs a ECU. I did a lot of research upon them, and found that its a common misery taking into account 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 infatuation to be re-adjusted? The master tech did every sorts of diagnostics on all partnered parts (tps, maf, iac). 0-200 every epoch I give a positive response it do the dealer for diagnostics.. upon going problems are in point of fact adjunct up. I m of two minds to lie alongside 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 hurriedly after I got it home.Any new help you can come up with the money for is appreciated. I don't know what else to complete but resign yourself to it urge on to the dealer. I know I've got the shop foreman working upon it at the dealer, but I still tone its pushed to the encourage as its old and everyone loses in this situation.
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