5-Series (E12,E28, E34, E39, E60)Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)
Hello I have a 1990 525i m20 Eng. I replaced the airflow sensor and idle control valve. The coolant temp sensor seems to be ok. I checked for vacumm leaks around the intake and brake booster also.
The car stalls and idles low when first started in the cold and stalls out. Its ok once I get down the road a couple of miles. Then if the car sits for approx 30 minutes it stalls and idles low. There seems to be a little hesitation when I give it gas in neutral. Its a 5-speed with 193,000. I checked for vacumm leaks around the intake and brake booster also.
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