P1338 – EVAP System Small Leak Detected
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Symptoms
- Check engine light
- No noticeable driveability issues
Causes
- Loose fuel cap
- Cracked EVAP hose
- Seal leak at fittings
Diagnosis
- Inspect fuel cap
- Smoke test EVAP system
- Check hoses and joints
Repair
- Tighten or replace cap
- Repair or replace hoses
- Reseal fittings