|
That is engine decel and nothing to worry about. When you let off the gas and coast with the transmission in gear, the engine turns off the injectors and you go "infinitely lean" because there is zero fuel. Loggers and sensors generally have an upper limit. It seems it is 235.2. Some stop at 22:1. My LM-1 sensor will actually read oxygen % on its display, but my gauge stops at around 22:1 IIRC.
__________________
2009 BMW 135i 6MT Sport, AFE intake, Cobb AP, Apex 18x8.5+9.5, 255/275 PSS
|