Skip to main content ↑ ↓
Topic: Code 91 (Read 794 times) previous topic - next topic

Code 91

I know it's oxygen sensor related but does it tell which one?
It comes up on koer,not when it's koeo.Can't find my spares to test it.
Old Grey Cat to this.88 Cat, 5.0 HO, CW mounts, mass air, CI custom cam, afr165's, Tmoss worked cobra intake, BBK shorty's,off road h pipe, magnaflow ex. T-5,spec stage 2 clutch, 8.8 373 TC trac loc, che ajustables with bullits on the rear. 11" brakes up front. +
 

Code 91

Reply #1 –
Left Sensor lean.

Code 91

Reply #2 –
Yep, left side wires melted to the H pipe.
Old Grey Cat to this.88 Cat, 5.0 HO, CW mounts, mass air, CI custom cam, afr165's, Tmoss worked cobra intake, BBK shorty's,off road h pipe, magnaflow ex. T-5,spec stage 2 clutch, 8.8 373 TC trac loc, che ajustables with bullits on the rear. 11" brakes up front. +