It only comes on once i get below quarter of a tank. I had it scanned once at autozone, and they told me one of the codes was a bmw only code, something to do with the mass air flow sensor, and the other was the egr. So he cleared the codes, and it was good for a while... I made it all the way through a tank of gas w/out the code. Then when that tank was empty i put in half a tank, and now i just got below the quarter tank line and the light came back on... Any ideas?
is the low fuel light coming on too? maybe their wires are crossed.
__________________ '99 ti /Mtechnic, Schwartz II, Meyle Control Arms w/Full Metal Ball Joints, PowerFlex poly LCAB's, Pirelli P Zero/Nero 225/50/16, "the d-baffle"......
OBD II cars test the fuel tank for leaks via a vacume sensor (I don't know specifically if BMW does.) But if the O-ring on the fuel cap is tired or the cap isn't on tight it will cause a check engine light. My 95 is OBD I so I havn't bothered to figure out BMW OBD II.
Dave
__________________ Dave - PDX 1995 318ti - Active Black and Tan. 2005 330xi - Mtech 1 - 6spd - Orient Blue/Black
check engine w/ low fuel 
Linear Mode
