Question

Hello. I just bought a (new to me) 2001 Z3 3.0i automatic from my in-laws. Well, 3 weeks later and I am now forced to learn about BMW repair! I did about an hour of searching first, but did not find out much. ANY SUGGESTIONS ARE APPRECIATED IN ADVANCE BECAUSE I MAY BE STUCK AT WORK! Anyway, today while driving the 4 miles to work, I took a sharp left corner at the light and gassed it. The Z3 sputtered/lurched and became very pissed off at me. This caused the dash to light up with the DSC light, the other exclamation mark, and maybe even the check engine light. Great. I limped the car the remaining half mile to work (and it continued to sputter a little as I drove). When I got to the parking garage, I hooked up my cheap ODB code reader that was in the glove box and I got the following errors: P0335 (CRANKshaft position sen) (I had gotten this code a few times in the last week, but I had just erased it. I am not positive that this code was tripped this morning or was already in the system). P0727 (engine speed input circuit no signal) P0171 PD (system too lean bank 1) P0174 PD (system too lean bank2) P0174 PD again P0174 PD again P0171 PD again P0727 again Any ideas? Part numbers for the parts that I should buy? (I am pretty good at working on my own vehicles… but I will admit that most of my experience is on Jeep Grand Cherokees, Chevy Tahoes, etc… and not higher end cars like BMWs) Can the crankshaft position sensor (if that is the problem) be changed in the parking garage? (or do I need to get it towed home so that I can put it up on jack stands?)