I'm getting this code on a VW new Beetle 2002. What is the cause? What do you fix? Please post. joe
What does a P0455 Evaporative emission control system (Gross) leak detected mean?
Oct 22, 2003
2 Replies
Usually, you left the gas cap loose. But would help to know more history on the car. Such as, was it recently wrecked in the rear, or maybe where you park the NB some mice or squirrels got above the fuel tank and chewed up the vent lines. Or, a failure with the leak detection pump.
P0455 is usually caused by a missing/loose gas cap, a disconnected evap line, a leaking purge/N-80 valve, a cracked canister, a faulty leak detection pump, or a leaking fuel tank sender seal.
Paul Certified VW tech
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