VOLVO
ECM-6207 - AACV. Flow too low
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
5 modelsC70 Cabriolet (1998–2005), C70 Coupé (1998–2002), S70 (1997–2000), S80 (1999–2006), V70 (1997–2000)
Show models by year and engine (8)
- Volvo C70 Cabriolet (1998–2005)2000Engine B5244S only
- Volvo C70 Coupé (1998–2002)1999Engine B5254S DENSO only
- Volvo C70 Coupé (1998–2002)2000Engine B5244S only
- Volvo S70 (1997–2000)1999Engine B5254S DENSO only
- Volvo S70 (1997–2000)2000Engine B5244S, B5244S2, B5244SG, B5244SG2 only
- Volvo S80 (1999–2006)1999–2000Engine B5244S, B5244S2 only
- Volvo V70 (1997–2000)1999Engine B5254S DENSO only
- Volvo V70 (1997–2000)2000Engine B5244S, B5244S2, B5244SG, B5244SG2 only
What does this fault code mean?
When fuel is cut off, for example during engine braking, the engine control module (ECM) changes the control of the AACV. The air flow should then change. If it does not, because the valve is stuck, the code is set.
Possible causes
- Sticking AACV
- Blocked AACV or hose
- Defective AACV
What you can do
- 1With a diagnostic tool: activate the AACV and see whether it responds
- 2Check that the hose to the AACV is not blocked by dirt or damaged
- 3Check the fuse for the AACV circuit
- 4Clear the code and drive the car to see whether it returns
- 5If the fault remains, have a workshop check or replace the AACV
Symptoms you may notice2
- Idle speed is low
- Idle speed hunts up and down
General guidance for car owners. Diagnosis on the car can point to a different cause.