Fault Text
Fault Texts
Fault types
Type 1 Signal implausible/implausible operating range/malfunction
Type 2 Open circuit/no signal
Type 3 Short to ground/below lower limit/lean mixture threshold
Type 4 Short to B+/above upper limit/rich mixture threshold
Check Engine MIL
0 MIL is not triggered with this fault
1 MIL is on, emission relevant fault
2 MIL is flashing, fault damaging to TWC
3 Only in combination with misfiring