


▲ 60 r/e28
High idle issue, 1988 528e
Got the car a couple of months ago and I’ve been tracking down a high idle issue. The car was idling at 1500-1600rpm when in park and neutral, I replaced fuel injector O-Rings, a few hoses, cleaned the air flow sensor, cleaned the ICV, and replaced the TPS and adjusted it accordingly. All of that got it down to about 1000-1100rpm now and it’s running very healthy overall. Any tips or ideas of what to check out to help solve this issue?
(The car drives fine and doesn’t idle oddly whatsoever under load)
u/PresentAd9946 — 4 days ago