Decoding P0455 on Your Acura Integra
A P0455 on your Acura Integra signals a large EVAP leak. Built on the Honda Civic platform with a 1.5L turbo engine, the Integra uses Honda's canister vent shut valve EVAP system. Check your warranty status.
Clues
- Check engine light on
- P0455 stored in ECU
- Possible fuel odor
- Gas cap not clicking
Suspects Ranked
- Gas Cap Seal (Very High Likelihood): Loose or worn. $0–$25.
- Canister Vent Shut Valve (Medium Likelihood): Honda EVAP valve. $120–$260 installed.
- Purge Solenoid (Medium Likelihood): Sticking. $100–$240 installed.
- Charcoal Canister (Low-Medium Likelihood): Overfilling damage. $250–$450 installed.
- FTP Sensor (Low Likelihood): Faulty reading. $130–$280 installed.
Diagnosis
Gas cap first. Drive 2–3 days. If P0455 persists, your Acura dealer with HDS or a Honda-experienced independent shop can diagnose efficiently.
Warranty
Acura's 4yr/50k warranty may still apply depending on purchase date and mileage. Federal emissions (8yr/80k) provides extended EVAP coverage.
Safe to Drive?
Yes. P0455 doesn't affect the 1.5L turbo, CVT/6-speed manual, or any features.