Quote:
Originally Posted by Vza
Ok thanks for the info. I was thinking about the o2 sensors but that would mean 2 would have to be faulty being that both banks are rich.
1st test engine not running just key on?
2nd test engine running to heat up sensors?
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1st test key on engine OFF. This test looks for correct voltage signal form the DME/ECU to the sensor.
2nd test key on engine OFF. this test looks for correct voltage to the heater circuit..
The first 2 test just confirm that supply voltages are correct. so key on engine OFF.
The 3rd test is to test the operation of the sensors so engine running.
Yes both sensors would have to be faulty because both banks are rich.
the tests will let us see if they are or not.
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