1990 5-spd 525i - m20 SOHC - manufactured 05/90
Located in SoCal
123k miles on the car

Okay, my 5 series....great car....couple issues im workin on...idle is one of them

IDLE

when i start the car cold....runs fine.....but...if i start the car after its been run (like 15min-1hr later) the idle goes between 200 and 2k rpms irradically until i drive for a while. I already replaced the intake manifold gasket because it was leaking. Thought this was the prolbem.

WHAT ELSE COULD IT BE!!!!!!!!!!!!!!!!!!!! (IDLE REGULATOR VALVE - but if it was this, would the idel be jacked all the time?)