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Q: engine service light on 2002 BMW 525i

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
pulled a code from auto zone p0455 what does mean
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
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po455 detects a large air leak in the evap system of your car. ck your gas cap 1st and make sure its ok, no cracks in o ring and that it is tight. after that you may neeed to seek a prof opinino because these can be tricky to repair
Check your gas cap seal and make sure it is closed. If you drove for even a few miles with the gas cap loose you can get this code. Make sure it is sealed and drive, it could clear. Otherwise, replace gas cap and drive and see what happens. If it doesn't clear at this point, you have an evaporative recovery system leak in the fuel system elsewhere and may need a "smoke test" at a shop to find the leak.
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