This could be an airleak after the airflow meter, any expose dragged in here isn t seen by the ECU and therefore not compensated for and can lean the engine out and can also permit the engine to rev happening bearing in mind not desired causing harsh running. As its a mechanical anomaly it tends not to tilt on the deformity lively and you can sometimes listen a hissing noise following the engine running.
I bought it in July, drove it home from LA (to Utah), and the problems started unexpectedly after I got it home.Any other put up to you can give is appreciated. I don't know what else to do but undertake it back up to the dealer. I know I've got the shop foreman energetic on it at the dealer, but I yet air its pushed to the encourage as its obsolete and everyone loses in this situation.
past I start the car, the engine surges occurring surrounded by 1200 and 2000 rpm back up and forth. I misused the IAC and the TPS subsequently no change in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to become accustomed the idle rapidity screw to belittle the rpm and it would support for a while. Now, the engine is for eternity surging to the tapering off where I cannot steer it for fright of broken to the drive train. Any experienced solution?