Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super shout from the rooftops 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) on tps, iac and maf and cleaned the TB. After maddening 2-3 oscillate 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. back 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 pain subsequent to 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 dependence to be re-adjusted? The master tech did all sorts of diagnostics on every similar parts (tps, maf, iac). 0-200 every epoch I take on it accomplish the dealer for diagnostics.. on going problems are in fact tallying up. I m of two minds 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 other incite you can have enough money is appreciated. I don't know what else to realize but allow it put up to to the dealer. I know I've got the shop foreman operating upon it at the dealer, but I nevertheless atmosphere its pushed to the put up to as its dated and everyone loses in this situation.
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