Steve Ashworth
Active Member
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mpg on my 2001 P38 4.0 petrol is down 20%. Smells to be running rich? Wondered if it could be to do with 02 sensors...I have a Faultmate but dont understand live readings.
Lamda A and Lamda B Output both hover either side and close to 1
Upstream Shunt Voltage is constant at 0.11
Upstream O2 Heater Voltage is constans at 11.7
Upstream 02 Sensor Bank A and B both fluctuate between 0 and 0.88 with no obvious link to drive conditions
Upstream O2 Sensor Max is constant at Zero on both banks
Upstream O2 Sensor Min is constant at Zero on both banks
Help on what these readings mean would be appreciated.
Which side is Bank A.
Thanks,
Steve
Lamda A and Lamda B Output both hover either side and close to 1
Upstream Shunt Voltage is constant at 0.11
Upstream O2 Heater Voltage is constans at 11.7
Upstream 02 Sensor Bank A and B both fluctuate between 0 and 0.88 with no obvious link to drive conditions
Upstream O2 Sensor Max is constant at Zero on both banks
Upstream O2 Sensor Min is constant at Zero on both banks
Help on what these readings mean would be appreciated.
Which side is Bank A.
Thanks,
Steve