2002 Mercury Marquis Replaced Fuel Pump Now Check Engine Light On Code P0453

2002 MERCURY MARQUIS
90,000 MILES
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REPLACED FUEL PUMP NOW CHECK ENGINE LIGHT ON CODE P0453 REPLACE FUEL TANK PRESSURE SENSOR RAN TEST SENSOR SHOWS 5 VOLTS WHICH MEANS IT IS BAD BUT WE PUT TWO ON IT. THEY READ THE SAME WHAT COULD CAUSE THIS
Feb 7, 2013 at 4:10 PM
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RANDICO
  • ✓ASE Certified Mechanic
  • 174 POSTS
  • ASE Certified Mechanic
Poor connection at the harness,leading to the ECM, You may also still have a EVAP leak at the gas cap, the filler neck ,If you just put a fuel pump on, you have a evap somewhere,check also the purge line which should normally be closed
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Feb 7, 2013 at 5:40 PM
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