Well, today I tried running the vehicle with the Lambda sensors disconnected. I got 0V from the sensors. (with sensors disconnected, Live data still recorded 4.9V) with sensors disconnected, the signal wire on the main loom was at 4.9V with signal wire on main loom earthed, live data reported 0V! (So I am assuming that it is reporting signal voltages correctly) How do these BMW spec sensors work? Do they generate a voltage like the "Normal" lambda sensors or do the act as an earth signal with the ECU defaultin to 4.9V under fail conditions??? |
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BMW 328i 2.8 1995 - Will not enter closed loop! # - Paul Howd February 14, 2012, 8:16 pm
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