This could be an airleak after the airflow meter, any freshen dragged in here isn t seen by the ECU and appropriately not compensated for and can thin the engine out and can afterward permit the engine to rev going on following not desired causing rude running. As its a mechanical oddity it tends not to face on the malformation fresh and you can sometimes hear a hissing noise subsequently the engine running.
I'm 1500 too high.. or more. It's boggling to me how this problem has morphed into various idle problems and has everyone perplexed.. or as a result it seems. I've been dealing in the same way as this before July.. makes me appreciate my 240z 10 period more.My daddy owns an sc400 and its been in fact fine to him.. I'm having a hard times not being prickly once this purchase. I accomplish atmosphere later its a good car though. Motor sounds gorgeous and is super mild with management right.
similar to I start the car, the engine surges going on along with 1200 and 2000 rpm assist and forth. I untouched the IAC and the TPS subsequent to no amend in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to accustom yourself the idle promptness screw to subjugate the rpm and it would support for a while. Now, the engine is continually surging to the narrowing where I cannot steer it for terrify of damage to the steer train. Any experienced solution?