Check Engine Light - ARGH

[Dathaeus]

Yes, I hear Sheldon chastising me, for the last month... my local indy wants to charge $100 to diagnose it... before I HAVE to do that, any ideas, or a test I can do myself? There is absolutely NO sign of any symptoms that worry me, it is operating perfectly except for that annoying light. Thanks!

[shogun]

instead of paying your local indy, buy for about $150 a fault code tool from Peake, then you can read the codes as often as you want and also can reset them after the faults have been repaired.
R5/FCX(II)
Scan/Reset Tool for BMWs 1987-2000
R5/FCX Scan and Reset Tool (http://www.peakeresearch.com/code_tool.htm)

[ahlem]

autozone reads the codes for free around here