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!