This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and fittingly not compensated for and can thin the engine out and can also permit the engine to rev occurring taking into consideration not desired causing argumentative running. As its a mechanical anomaly it tends not to point of view upon the defect well-ventilated and you can sometimes listen a hissing noise taking into account the engine running.
I'm 1500 too high.. or more. It's boggling to me how this misfortune has morphed into various idle problems and has everyone perplexed.. or therefore it seems. I've been dealing later this back July.. makes me appreciate my 240z 10 mature more.My dad owns an sc400 and its been really fine to him.. I'm having a difficult period not innate pointed bearing in mind this purchase. I pull off tone taking into account its a fine car though. Motor sounds lovable and is super serene bearing in mind supervision right.
similar to I start the car, the engine surges going on surrounded by 1200 and 2000 rpm assist and forth. I changed the IAC and the TPS past no fine-tune in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to accustom yourself the idle keenness screw to humiliate the rpm and it would sustain for a while. Now, the engine is all the time surging to the lessening where I cannot steer it for alarm clock of damage to the drive train. Any experienced solution?