PO455 code

davebuildshogs · Post by **davebuildshogs** » 19 Apr 2011, 15:48

Hi Guys
I have a 2000 S40. it has a check engine light flashing .scanned came up with code po455 vacuum lines are cracked so i will replace all that go to valve.car has no power and it sounds like it has an exhaust leak.vacuum line are new to turbo and waste gate.exhaust looks in good shape.checked timing belt looks almost new.anyone who has had something like this going on do a post thanks in advance

Post by **billofdurham** » 20 Apr 2011, 12:06

Welcome to Matthew's Volvo Site.

P0455 relates to Volvo code ECM-68 which is a leak diagnostic of the fuel system. It may be something as simple as a loose or missing fuel filler cap to a leak in one of the components of the fuel system: tank; filler pipe; EVAP canister; canister purge valve or one of the hoses in the system.

Obviously the easiest check is the filler cap for tightness or for a damaged or missing sealing ring - a common cause of this code.

Bill.