Hello. I’ve been having a intermittent issue with my 1992 3fe when fully warm. Every so often when in park and I rev the engine to 2000 rpm and let my foot off the gas it will drop idle almost to stalling out before it catches itself. Sometimes it doesn’t catch and dies. This has happened when coming to a stop also. One thing I noticed while looking for vacuum leaks (none that I could find). If I disconnected the pcv hose and create a vacuum leak it would run a little rough but not almost stall out when reving. I did clean the throttle body and isc valve recently. Before my current issue appeared.
(It does idle at the correct speed when warm) 650 rpm in park and drops to about 600 when in drive.
Any help would greatly be appreciated.
(It does idle at the correct speed when warm) 650 rpm in park and drops to about 600 when in drive.
Any help would greatly be appreciated.