Hey guys,

O2 sensor yes, but I haven't seen where the phantom fuel pump wiring was inspected. And the car has no other apparent faults. I'm missing something again.

 

My scanner book says the code is A bank upstream O2 sensor. Possible Causes:

O2 sensor heater failure
O2 sensor sensing circuit short circuited to ground or high voltage
O2 sensor sensing circuit open
ECM failure

It seems ECM failure is the last one on a lot of codes.

I would check the O2 wiring and maybe take the connector apart and clean it real good with electrical contact cleaner.

Blaze

 

Nice of Jag to provide the techs the wrong code definition...LOL