Car has been acting poorly for the last two weeks. Usually it stalls dead once on cold start. Then sometimes it hunts until it warms up, rarely it surges to 2.5K then settles at 1K and stays there but mostly it just bogs around 500 RPM until warm. If I leave the car off for 20-30 minutes it does bog but recovers faster. Considering the state of my spark plugs I suspect clogged injectors but I’d like to rule out a new vacuum leak first since this is classic vacuum leak behavior.

Recorded today after it stalled once on cold start, then did this:

BMW e30 Idle Hunting from Gary Gehiere on Vimeo.

November 12, 2012 mechanical, video