VOLVO
ECM-P02E173 - Diesel Intake Air Flow Control Performance. Mechanical Failures. Actuator stuck closed
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
2 modelsS80 (2007–), V70 (2008–)
Show models by year and engine (2)
What does this fault code mean?
The engine control module (ECM) compares the actual position of the intake air control valve with a calculated reference value. If the position does not match, the fault code is stored. The fault code means the valve is stuck in the closed position.
Possible causes
- The control valve is stuck in the closed position
- Damaged control valve in the intake air inlet
What you can do
- 1Read the fault code, clear it and test drive the car to see whether it returns
- 2Check that the flap in the intake pipe is not held in the closed position and is free of dirt
- 3Check that the fuses are intact; their locations are shown in the owner's manual or on the fuse box cover
- 4If you have a diagnostic tool: read the valve's reference value and actual position in live data with the engine running and compare them
- 5If the fault returns: have a workshop with diagnostic equipment check and, if needed, replace the control valve
Symptoms you may notice1
- No noticeable symptoms for the driver
General guidance for car owners. Diagnosis on the car can point to a different cause.