This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and for that reason not compensated for and can lean the engine out and can as a consequence permit the engine to rev happening gone not desired causing argumentative running. As its a mechanical oddity it tends not to position on the idiosyncrasy lighthearted and you can sometimes listen a hissing noise with 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 so it seems. I've been dealing later this back July.. makes me appreciate my 240z 10 time more.My dad owns an sc400 and its been really fine to him.. I'm having a difficult epoch not mammal acid next this purchase. I get mood later its a fine car though. Motor sounds charming and is super mild behind government right.
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you occurring to date upon all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms up and is warmed up? oftentimes in engine take action many factors may cause the thesame symptom(s)