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E36General discussion and technical help for (E36) 1992-1999 3 series cars. 318, 323, 325, 328.
Hello! This is my first posted question... I thank you in advance for your patience. ;-)
I just purchased a '96 328i - love it! But it came without an owner's manual. There are no indicator lights on, but I want to make sure my "Check Engine" light actually works... The only thing is that before starting, when all the lamps come on as a system check, I do NOT see a "Check Engine" light. I DO see an amber-colored gear symbol light with an exclamation point in the center of the gear. Is that the "check engine" light? I just want to be sure. OK - that's question 1.
Here's question 2 (and the reason for question #1). I purchased an OBD-II reader a few days ago and, despite the fact that I do not have any indicator lamps on, it reads a couple of codes: "Fuel trim bank 1" and "Fuel trim bank 2", and it actually indicated that I should have a MIL (malfunction indicator lamp) on... even though NONE of my indicator lamps are staying on after starting her up. The idle is a little rough. It still has adequate power, and cruises smoothly, but the idle in the colder weather is erratic (it was just fine when warmer) - it pitches up and down and initially acceleration is a bit jumpy. I'm thinking that this is the MAF sensor (mass air flow meter). Am I on the right track?
That's the only problem I've got with the car right now. Anybody - any ideas based on your knowledge/experience with the 2.8L I6? Let me know when you can - and thanks!
Your check engine light indicator is yellow on 96 328i!!
Try to google the obd 2 codes or just type them in the search at the many BMW forums! Good Luck!!! sorry about the attach being sideways just turn your head down to the left!
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Your Ride: 1985 bmw 325
the idle jumping up and down on cold weather starts is normal and actually a good sign it means your cold injector is working the cold injector has a function after it first turns on it will shoot fuel in a pulse type fashion to keep your car running in cold weather .hence why it was better in warm weather cold injector turns off faster .so just let it warm up a bit before you take off in it .as for the codes if the car is running fine i wouldnt worry those codes could be old ones from what i understand obd2 can store codes long after the problem is gone .if your not getting any yellow check engine light i wouldnt worry the chances are the lights there just not on becuse codes are old and just being stored .good luck.