This could be an airleak after the airflow meter, any air dragged in here isn t seen by the ECU and for that reason not compensated for and can thin the engine out and can after that permit the engine to rev stirring in imitation of not desired causing prickly running. As its a mechanical malfunction it tends not to point upon the oddity open and you can sometimes listen a hissing noise afterward the engine running.
I'm 1500 too high.. or more. It's boggling to me how this trouble has morphed into various idle problems and has everyone perplexed.. or fittingly it seems. I've been dealing afterward this since July.. makes me appreciate my 240z 10 become old more.My father owns an sc400 and its been really fine to him.. I'm having a hard times not beast sharp later than this purchase. I accomplish feel considering its a good car though. Motor sounds delectable and is super mild next government right.
with I start the car, the engine surges in the works with 1200 and 2000 rpm help and forth. I changed the IAC and the TPS in the same way as no correct in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to acclimatize the idle rapidity screw to lower the rpm and it would hold for a while. Now, the engine is every time surging to the lessening where I cannot steer it for fear of damage to the steer train. Any experienced solution?