Volvo s60 2001 check engine code is po442- what does this mean?
You likely won't notice any drivability problems. P0442 indicates a fuel vapor leak in the EVAP control system. It means a very small leak has been detected. In fact, the leak can be from a hole as small as 0.04" in diameter.
The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage.
Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.
With a P0442, the most common repair is to Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back. Otherwise, replace the gas cap, or Inspect the EVAP system for cuts/holes in tubes/hoses.
Good luck and hope this helps
The Volvo conversion code for P0442 is ECM-430D indicating that you may have a minor leak in the fuel system
Diagnostic Trouble Code (DTC) Information
ECM-430D Leak Diagnostic. Smallest Leak
Condition
EVAP canister shut-off valve is shut, canister purge (CP) valve is
pulsed. When a predetermined negative pressure is reached in the fuel
tank the canister purge (CP) valve is closed. Diagnostic trouble code
(DTC) ECM-430D is stored if the negative pressure in the fuel tank
falls too quickly during a certain amount of time.
Substitute Value
none
Possible Source
leaking fuel tank, filler pipe, fuel tank filler cap, EVAP canister,
EVAP canister shut-off valve or lines between these components
Fault Symptom[s]
none
hopefully this helps
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