REMOVING REAR O2 SENSOR

[richardpalinkas]

have removed the rear o2 sensor to put in place a wideband. what scalers need to be adjusted to stop the engine light coming on?

[Roland@pcmtec]

Set the following to No Error

auF2164    P0136 - Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2)
auF1845    P0138 - Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2)
auF1127    P0141 - Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

If you have a V8 you need to set the Bank 2 Sensor 2 as well.

Then to disable the rear o2 logic itself set the following to 1
auF2440    Calibration switch that will disable FAOSC  (DISABLE ->1 or ENABLE -> 0 )

If you want to disable the heater output for the rear O2 sensor (eg you have the plug chopped off or some other reason) then you can set the following to 0 for the appropriate sensor

auF12158 EGO heater  hardware present switch array.

[richardpalinkas]

legend

[Lewy71]

On 11/26/2019 at 6:01 PM, Roland@pcmtec said:

Set the following to No Error

auF2164    P0136 - Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2)
auF1845    P0138 - Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2)
auF1127    P0141 - Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

If you have a V8 you need to set the Bank 2 Sensor 2 as well.

Then to disable the rear o2 logic itself set the following to 1
auF2440    Calibration switch that will disable FAOSC  (DISABLE ->1 or ENABLE -> 0 )

If you want to disable the heater output for the rear O2 sensor (eg you have the plug chopped off or some other reason) then you can set the following to 0 for the appropriate sensor

auF12158 EGO heater  hardware present switch array.

Cannot find scalars:-

auF2440

auF12158

to disable them what am I missing ?

 

I also changed auF0011 to 0 no rear sensor is this required ?

 

Edited October 21, 2020 by Lewy71