code indicates PO455

2003 BMW X5
144 MILES
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JOHNNYCAM
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  • 1 POST
I was at a gas station filling up pulled out and computer indicated loose gas cap I tightened the cap and soon after the service engine light came on and has not went off after a weeks driving I had the car tested at a jiffy lube on the computer and the code indicates PO455 can you tell me what part to replace 1st thanks
Apr 15, 2013 at 9:15 PM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
455 is a large leak in the system.

you need to have a smoke machine, scan tool and voltmeter to track down the failed part

Roy
Apr 16, 2013 at 7:50 PM
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