Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super market car that I am ready to drive off a cliff. had a idle surge misery that I researched online and did tests (per the manual) on tps, iac and maf and cleaned the TB. After irritating 2-3 alternative 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. put up to to the dealer.. this times he says, it needs a ECU. I did a lot of research on them, and found that its a common misery past this car.. bought a used one.. more trouble. had the indigenous 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 upon every related parts (tps, maf, iac). 0-200 every get older I acknowledge it attain the dealer for diagnostics.. on going problems are in point of fact calculation 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 unexpectedly after I got it home.Any other incite you can give is appreciated. I don't know what else to complete but agree to it encourage to the dealer. I know I've got the shop foreman functioning on it at the dealer, but I yet environment its pushed to the encourage as its dated and everyone loses in this situation.
I don't have any check engine lights unless I unplug the MAF sensor. next the MAF is plugged in later the car will stall unless I put my foot upon the accelerator. There is furthermore an intermittent popping solid coming at idle.