P1123/1125 cel

[blue62]

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?

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.

[Vza]

OK ,so I'll see the 02 Voltage

02 heater voltage

and then graph them when I open the durametric....

I mean every durametric is pretty much the same.

Vince

[blue62]

Originally Posted by Vza

OK ,so I'll see the 02 Voltage

02 heater voltage

and then graph them when I open the durametric....

I mean every durametric is pretty much the same.

Vince

Print out post #7
Then hook up your Durametric
Just read post #7
I explained how to do everything step by step
graphs, voltages, what to do to get there everything is explained in post #7
Easy peasy
Yes as far as I know all Durametrics work the same.

[Vza]

[Vza]

[Vza]

[Vza]