2002 MERCURY MARQUIS
90,000 MILES
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  • 1 POST
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
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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RANDICO
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 174 POSTS
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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