My girlfriend drives a 2001 Jetta. She bought it 2 years ago after a drunk driver totaled her other car. At the time, we thought (I helped her shop for it…now I’m starting to feel bad) it was a good deal, and aside from a few cosmetic things, the car seemed to be in great condition. Today she told me that her check engine light was on.
That was the icing on the cake so I took it to autozone to get checked out. In addition to the check engine light, she has been having problems with her rear break and turn signal lights. They keep going out!!! First question: is there a place (the owner’s manual has disappeared) I can look online to get legit answers as to what bulbs to put in to replace the burnt ones? There are 5 sockets on each side of the car, and every time I go in to autozone, they always tell me 7506LL…I swear those aren’t the right bulbs but I don’t know. Anyways, the break lights are working again, but the turn signals still either don’t work at all, flicker randomly, or crap out after a few blinks. Any ideas to what could be behind that?
Back to the check engine light. The OBDII said the error was P0171 – fuel mixture too lean/rich in port one. Last year I had the same problem on my own car (exact same code too on my 99 Saturn SL2) and I replaced the o2 sensor and the problem went away. But! from what I’ve read on various websites, it is more likely that the MAF sensor is dirty or faulty, and I should start by cleaning that. The car shows no symptoms of any kind; it seems to run just fine. Sound like a good plan to start with the MAF?
Oh, and another thing!!! The temperature gauge works about 15% of the time. Most of the time it rests at “”cool”" and doesn’t seem to register any kind of temperature reading. Could someone link me to a forum or website with information, or give me some advice on that? I seem to remember reading something about it being really easy to replace, but I have no idea where it is….any tips on that as well? Thanks in advance, this website has already been extremely informative.