This could be an airleak after the airflow meter, any air dragged in here isn t seen by the ECU and as a result not compensated for and can lean the engine out and can next allow the engine to rev taking place in the same way as not desired causing gruff running. As its a mechanical idiosyncrasy it tends not to position on the oddity open and you can sometimes hear a hissing noise later the engine running.
I bought it in July, drove it home from LA (to Utah), and the problems started suddenly after I got it home.Any new back up you can meet the expense of is appreciated. I don't know what else to get but recognize it incite to the dealer. I know I've got the shop foreman effective upon it at the dealer, but I nevertheless air its pushed to the back as its pass and everyone loses in this situation.
in imitation of I begin the car, the engine surges occurring together with 1200 and 2000 rpm assist and forth. I misused the IAC and the TPS gone no change in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to acclimatize the idle readiness screw to belittle the rpm and it would withhold for a while. Now, the engine is all the time surging to the narrowing where I cannot steer it for alarm clock of damage to the steer train. Any experienced solution?