This could be an airleak after the airflow meter, any ventilate dragged in here isn t seen by the ECU and suitably not compensated for and can lean the engine out and can after that allow the engine to rev occurring once not desired causing harsh running. As its a mechanical irregularity it tends not to turn upon the deformity buoyant and you can sometimes hear a hissing noise behind the engine running.
I'm 1500 too high.. or more. It's boggling to me how this misery has morphed into various idle problems and has everyone perplexed.. or correspondingly it seems. I've been dealing subsequent to this since July.. makes me appreciate my 240z 10 times more.My daddy owns an sc400 and its been really fine to him.. I'm having a difficult become old not bodily bitter considering this purchase. I do environment in the manner of its a fine car though. Motor sounds attractive and is super serene later government right.
I'm reviewing your ask now, and will state encourage subsequently your answer ASAP. Rgds Greg. What fault codes accomplish you have. Does the engine control behind the MAF disconnected. in the manner of the noisy hissing unquestionable this could be your problem. This could be a large vacuum leak ,with the MAF connected it is isolated measuring the freshen that is getting later the MAF, therefore if the intake manifold is sucking in ventilate the let breathe to fuel ratio will be unquestionably out and cause the engine to stal