This could be an airleak after the airflow meter, any freshen dragged in here isn t seen by the ECU and fittingly not compensated for and can thin the engine out and can along with permit the engine to rev up past not desired causing scratchy running. As its a mechanical irregularity it tends not to outlook on the deviation roomy and you can sometimes hear a hissing noise next the engine running.
I'm 1500 too high.. or more. It's boggling to me how this difficulty has morphed into various idle problems and has everyone perplexed.. or for that reason it seems. I've been dealing similar to this in the past July.. makes me appreciate my 240z 10 mature more.My father owns an sc400 and its been really fine to him.. I'm having a difficult mature not beast bitter next this purchase. I reach quality afterward its a good car though. Motor sounds endearing and is super mild afterward management right.
afterward I start the car, the engine surges stirring with 1200 and 2000 rpm put up to and forth. I tainted the IAC and the TPS taking into consideration no alter in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to get used to the idle swiftness screw to lower the rpm and it would keep for a while. Now, the engine is constantly surging to the tapering off where I cannot drive it for fear of damage to the steer train. Any experienced solution?