My Peake code reader must be female

[Beej '86 325es]

...because I just can't figure out what it's trying to tell me.

Engine is off:
24 (evap emission control)
C9 (lambda control)
0d (O2 sensor)

Engine is on:
24 (evap emission control)
C9 (lambda control)
and sometimes 0d (O2 sensor)
and sometimes no codes
and sometimes Error A1 (control unit supply)

I don't think people run any evap emission valve, so I'm not worried about that.
Lambda control worries me, but I'm running a PLX devices wideband O2, could that be why?

Any ideas or should I be concerned?
Thanks!

[matt]

That's your problem.

Use a real O2 sensor.

[Beej '86 325es]

Yeah, I was worried about using PLX's Bosch sensor as the narrowband also. I'll have to put in another O2 sensor bung for dyno runs anyway.

I'll go pick up a new sensor today and give that a shot. Thanks for the input.