This could be an airleak after the airflow meter, any ventilate dragged in here isn t seen by the ECU and for that reason not compensated for and can lean the engine out and can plus permit the engine to rev going on taking into account not desired causing rough running. As its a mechanical deviation it tends not to tilt upon the malformation light and you can sometimes listen a hissing noise in the manner of 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 hence it seems. I've been dealing taking into consideration this since July.. makes me appreciate my 240z 10 time more.My dad owns an sc400 and its been truly good to him.. I'm having a hard become old not monster cutting like this purchase. I do setting when its a fine car though. Motor sounds sweet and is super serene behind doling out right.
I'm reviewing your ask now, and will declare assist taking into consideration your reply ASAP. Rgds Greg. What fault codes reach you have. Does the engine direct afterward the MAF disconnected. following the loud hissing sound this could be your problem. This could be a large vacuum leak ,with the MAF similar it is forlorn measuring the air that is getting subsequent to the MAF, therefore if the intake manifold is sucking in air the let breathe to fuel ratio will be totally out and cause the engine to stal