2011 LML p003a code

[papy]

wondering if I should change anything (sensor or solenoid) prior to tearing into the turbo. I am aware of the problem just wondering if there is a solution other than the obvious? 

its a big job and big dollars to fix/clean the turbo. Truck is also not deleted so make it even harder getting to the turbo and and costly to replace gaskets and what not. maybe time to delete at this point?

Any harm in driving it as is? it seems like the DEF regen is cycling VERY often every three to four days and takes a long LONG time to clean itself out. I believe the turbo is getting stuck intermittently 

JP

Edited June 22, 2023 by papy
typo

[newdude]

DTC P003A

Turbocharger Vane Position Not Learned

 

Circuit/System Testing

Inspect the Q41 turbocharger vane position control solenoid valve and B112 turbocharger vane position sensor for damage or sticking.

 

If a condition is found, test or replace the affected component as necessary.

Inspect the turbocharger for debris, damage or sticking vanes. Refer to Turbocharger Cleaning and Inspection.

If a condition is found, clean or replace the turbocharger as necessary.

 

Component Testing

Turbocharger Vane Position Control Solenoid Valve

Ignition OFF, disconnect the harness connector at the Q41 Turbocharger Vane Position Control Solenoid Valve.

Measure the resistance across the Q41 Turbocharger Vane Position Control Solenoid Valve terminals. The resistance should be between 3–7 Ω.

If greater than the specified range, replace the Q41 Turbocharger Vane Position Control Solenoid Valve.

Test for infinite resistance between each Q41 Turbocharger Vane Position Control Solenoid Valve terminal and the solenoid valve housing.

If less than the specified range, replace the Q41 Turbocharger Vane Position Control Solenoid Valve.

 

Turbocharger Vane Position Sensor

Note: It is normal for the TC Vane Position Sensor voltage to quickly return to approximately 4.9 V as the plunger reaches its fully depressed position.

Remove the B112 Turbocharger Vane Position Sensor.

Connect the B112 Turbocharger Vane Position Sensor harness connector.

Ignition ON, observe the scan tool TC Vane Position Sensor voltage while slowly depressing the plunger at the end of the B112 Turbocharger Vane Position Sensor. The voltage should decrease smoothly from approximately 4.9–0.2 V.

If the TC Vane Position Sensor parameter drops out or spikes, replace the B112 Turbocharger Vane Position Sensor.

[papy]

this is a good start to eliminate a process of error. i will reply with what i discover

thanks