Powertrain
generic / SAE
P0448
EVAP System Vent Control Circuit Shorted
EVAP vent valve drive circuit shorted to ground or B+. The vent valve seals the canister during pressure-test diagnostics.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number4 / 48
Possible causes
- Short in drive line high
Symptoms
- Check engine light on
- Possible smell of fuel near tank or engine bay
- Failed emissions inspection
- Loose-cap warning may appear
Inspection / repair
- Difficulty: easy
- DIY: possible
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References
sae:J2012