VOLVO
ECM-402A - Fuel tank pressure sensor. Faulty signal
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
7 modellerC70 Cabriolet (1998–2005), C70 Coupé (1998–2002), S60 (2001–2009), S70 (1997–2000), S80 (1999–2006), V70 (1997–2000), V70 (2000–2008)
Vis modeller per årsmodell og motor (10)
- Volvo C70 Cabriolet (1998–2005)2000Kun motor: B5244S
- Volvo C70 Coupé (1998–2002)1999Kun motor: B5254S DENSO
- Volvo C70 Coupé (1998–2002)2000Kun motor: B5244S
- Volvo S60 (2001–2009)2001–2002Kun motor: B5244S, B5244S2
- Volvo S70 (1997–2000)1999Kun motor: B5254S DENSO
- Volvo S70 (1997–2000)2000Kun motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo S80 (1999–2006)1999–2002Kun motor: B5244S, B5244S2
- Volvo V70 (1997–2000)1999Kun motor: B5254S DENSO
- Volvo V70 (1997–2000)2000Kun motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo V70 (2000–2008)2001–2002Kun motor: B5244S, B5244S2
Hva betyr feilkoden?
The engine control module receives a signal from the fuel tank pressure sensor that does not match what it expects. The sensor, the hoses in the fuel system or a major leak can give a wrong reading. The engine control module then assumes a fuel tank pressure of zero, which can affect the leak diagnosis.
Mulige årsaker
- Defective hoses in the evaporative emission system
- Defective fuel tank pressure sensor
- Major leak in the fuel tank system
Hva du kan gjøre
- 1Make sure the filler cap on the fuel tank sits correctly, and that the sealing ring is intact and clean
- 2Look for leaks in the hoses and connections of the evaporative emission system, especially at loose joints
- 3Replace or repair damaged hoses and components where a leak is found
- 4Have you got a diagnostic tool: read the tank pressure in live data at idle and check that the value changes when you activate the canister purge valve
- 5If the fault remains after these checks, have a workshop with diagnostic equipment check the fuel tank pressure sensor
Symptomer du kan merke1
- No noticeable symptoms for the driver
Hva feilen kan påvirke1
- The engine control module assumes zero fuel tank pressure
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