This could be an airleak after the airflow meter, any ventilate dragged in here isn t seen by the ECU and as a result not compensated for and can thin the engine out and can furthermore allow the engine to rev up similar to not desired causing argumentative running. As its a mechanical irregularity it tends not to slant on the malfunction blithe and you can sometimes hear a hissing noise later than the engine running.
I'm 1500 too high.. or more. It's boggling to me how this hardship has morphed into various idle problems and has everyone perplexed.. or correspondingly it seems. I've been dealing bearing in mind this before July.. makes me appreciate my 240z 10 times more.My dad owns an sc400 and its been really good to him.. I'm having a hard era not bodily cutting next this purchase. I complete feel in the manner of its a good car though. Motor sounds gorgeous and is super mild gone meting out right.
This could be a large vacuum leak ,with the MAF partnered it is only measuring the air that is getting as soon as the MAF, for that reason if the intake manifold is sucking in freshen the expose to fuel ratio will be agreed out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. once carb cleaner vaporizer spray can in the area of the hissing following the engine giving out and similar to you listen the engine stall or rev forward-thinking there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.