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BMW Repair/95 BMW 325is Idle problem

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Question
1995 325is.  Thought I had a alternator problem but, after charging the battery for 10hours it did not hold a charge.  Put a new battery in, changed oil (since it was due) started up fine.  After engine warmed up idle became erratic (up and down) and then would stall.  Engine light goes on and off during this time but does not remain on.  Unable to get any codes to show.

Answer
Well most times a flashing check engine light means a catalytic converter damaging fault.Check the fuel pressure,it should be what is written on the fuel pressure regulator(about 3 bar).If it is too high it will cause excessive fuel delivery by the injecters.

BMW Repair

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Don Berlan

Expertise

ASE Master Mechanic for 25 years. Can help with all aspects of BMW repair. I especially enjoy driveablity problems, mechanical or electrical.

Experience

I have been an ASE Master Mechanic for 25 years.I have worked in many dealearships although BMW's are my favorite.I now have my own shop,specializing in BMW's.I have autocrossed and even gotten into mud running with my 4x4.(I am NOT a teacher and don't claim to know everything about the cars I never see.I hope to help you with your repairs and do expect some knowledge on your side.)

Education/Credentials
CMVTI, Auburn Maine

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