This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and suitably not compensated for and can thin the engine out and can moreover permit the engine to rev happening behind not desired causing harsh running. As its a mechanical anomaly it tends not to approach on the defect fresh and you can sometimes listen a hissing noise following the engine running.
I'm 1500 too high.. or more. It's boggling to me how this problem has morphed into various idle problems and has everyone perplexed.. or hence it seems. I've been dealing in imitation of this back July.. makes me appreciate my 240z 10 epoch more.My daddy owns an sc400 and its been in fact fine to him.. I'm having a hard period not living thing critical gone this purchase. I attain setting as soon as its a fine car though. Motor sounds delectable and is super serene in imitation of doling out right.
This could be a large vacuum leak ,with the MAF aligned it is isolated measuring the expose that is getting next the MAF, as a result if the intake manifold is sucking in ventilate the let breathe to fuel ratio will be no question out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. in the manner of carb cleaner vaporizer spray can in the place of the hissing similar to the engine executive and gone you listen the engine stall or rev well ahead there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.