What is evaporative emission system vent control circuit mean?
The evaporative emission control (EVAP) system prevents fuel vapors from escaping into the atmosphere. The vent control valve is controlled by the engine control module (ECM) and allows air to flow into the charcoal canister to purge the gas vapors into the engine air intake to be burned.
Is the p0448 OBD code a bad vent?
If you have a Chrysler, Jeep, or Dodge vehicle that has set a P0448, there’s a good chance that you have a bad vent. GM has released an improved valve assembly to handle this problem, as well.
When is the p0448 code stored in the PCM?
The P0448 code is stored when the powertrain control module (PCM) detects that the circuit for the evaporative emission control system’s vent has shorted, or that the valve for this system is stuck in the closed position. When gas sits in the gas tank, it emits vapor.
What is the DTC code for an evaporative vent?
P0448 is a diagnostic trouble code (DTC) for “Evaporative Emission Control System Vent Control Circuit Shorted”.
What are the symptoms of a p0448 DTC?
Symptoms of a P0448 DTC will include Malfunction Indicator Lamp (MIL) illumination, you will likely not notice any other symptoms. Potential causes may include: Some steps to take to diagnose and repair this trouble code include the following: Check your fuses, there may be a fuse that powers the vent solenoid.
If you have a Chrysler, Jeep, or Dodge vehicle that has set a P0448, there’s a good chance that you have a bad vent. GM has released an improved valve assembly to handle this problem, as well.
The P0448 code is stored when the powertrain control module (PCM) detects that the circuit for the evaporative emission control system’s vent has shorted, or that the valve for this system is stuck in the closed position. When gas sits in the gas tank, it emits vapor.
P0448 is a diagnostic trouble code (DTC) for “Evaporative Emission Control System Vent Control Circuit Shorted”.
Where is the EVAP canister vent control valve located?
P0448 Nissan Description The Evaporative Emission System (EVAP) canister vent control valve is located on the EVAP canister and is used to seal the canister vent. This solenoid (the EVAP canister vent control valve) responds to signals from the Engine Control Module (ECM).