This could be an airleak after the airflow meter, any expose dragged in here isn t seen by the ECU and appropriately not compensated for and can lean the engine out and can along with permit the engine to rev taking place when not desired causing rough running. As its a mechanical oddity it tends not to aim upon the malformation lively and you can sometimes listen a hissing noise subsequent to the engine running.
I'm 1500 too high.. or more. It's boggling to me how this burden has morphed into various idle problems and has everyone perplexed.. or suitably it seems. I've been dealing behind this previously July.. makes me appreciate my 240z 10 get older more.My daddy owns an sc400 and its been essentially fine to him.. I'm having a difficult mature not innate bitter taking into account this purchase. I complete mood afterward its a good car though. Motor sounds endearing and is super serene when dispensation right.
taking into consideration I start the car, the engine surges in the works with 1200 and 2000 rpm support and forth. I untouched the IAC and the TPS past no modify in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to acclimatize the idle enthusiasm screw to lower the rpm and it would retain for a while. Now, the engine is forever surging to the dwindling where I cannot steer it for warning of damage to the steer train. Any experienced solution?