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What does check engine code p1401 mean - 1997 Ford Explorer AWD

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Http://www.explorerforum.com/forums/showthread.php?t=133294

Your part may be covered under the emission control warranty. Otherwise check out the link above.

Posted on Nov 06, 2010

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What are codes p1401 p0302 p0305 p1409 p0301


P1401 Differential Press Feedback EGR Circuit High Input
Your EGR port is plugged. Replace your EGR valve, and clean the ports
A code P0302 may mean that one or more of the following has happened:
  • Faulty spark plug or wire
  • Faulty coil (pack)
  • Faulty oxygen sensor(s)
  • Faulty fuel injector
  • Burned exhaust valve
  • Faulty catalytic converter(s)
  • Running out of fuel
  • Poor compression
  • Defective computer
  • A code P0305 may mean that one or more of the following has happened:
    • Faulty spark plug or wire
    • Faulty coil (pack)
    • Faulty oxygen sensor(s)
    • Faulty fuel injector
    • Burned exhaust valve
    • Faulty catalytic converter(s)
    • Running out of fuel
    • Poor compression
    • Defective computer
    • A code P0301 may mean that one or more of the following has happened:
      • Faulty spark plug or wire
      • Faulty coil (pack)
      • Faulty oxygen sensor(s)
      • Faulty fuel injector
      • Burned exhaust valve
      • Faulty catalytic converter(s)
      • Running out of fuel
      • Poor compression
      • Defective computer
      • A code P0302 may mean that one or more of the following has happened:
        • Faulty spark plug or wire
        • Faulty coil (pack)
        • Faulty oxygen sensor(s)
        • Faulty fuel injector
        • Burned exhaust valve
        • Faulty catalytic converter(s)
        • Running out of fuel
        • Poor compression
        • Defective computer
        • p1409
        • EGR Vacuum System Leak - Read Our Article on EGR Valve Codes For Help With This Oldsmobile Check Engine Light Code

Sep 25, 2014 | Cars & Trucks

3 Answers

What is this code p1401


it's call DPFE Sensor Differential Pressure Feedback EGR is located on top of engine square looking with the electrical connector so replace it with part no. 4U7Z-9J460-AA get it from the dealers parts dept. ok disconnect negative side of the battery after installing sensor put negative back on battery then restart let it run ok.

Jul 01, 2014 | 2000 Ford Focus

1 Answer

Check engine light comes code p1401


Hi Abe, I'm glad to help!

P1401 is an EGR fault code: Differential Pressure Feedback EGR Circuit High Input. This can be caused by several things. EGR Valve is bad, Flow through the valve is restricted due to carbon build-up. Electrical connector OR wiring is damaged somewhere. Check the wiring and the connector at the EGR valve if no damage is found then replace the EGR valve and clean the port holes in the engine and the EGR tube that's running to the valve "IF IT HAS ONE". Clear the codes and drive it and see what happens. Hope this helps and have an awesome day Abe.

May 17, 2013 | Mercury Villager Cars & Trucks

2 Answers

The fuel pressure is low and it wont move the code that it gave me was po1401 what does that mean


CODE P1401 IS SENSOR CIRCUIT HIGH INPUT. POSSIBLE CAUSES DPFE SENSOR SIGNAL CIRCUIT IS OPEN.DPFE SENSOR GROUND CIRCUIT IS OPEN.DPFE SENSOR SIGNAL IS SHORTED TO VREF 5V. DPFE SENSOR IS DAMAGED OR IT HAS FAILED. PCM HAS FAILED.******* WHEN YOU SEE CODE P1401 FLASHING ********** WHAT IS HAPPENING ENGINE RUNNING AND THE PCM DETECTED THE DPF EGR SENSOR SIGNAL WAS MORE THAN THE MAXIMUM CALIBRATED VALUE OF 4.5 VOLTS. ON THIS VECHICLE APPLICATION THE DPPE EGR VALVE AND EVR SOLENOID ARE INTEGRATED INTO THE ESM ASSEMBLY.

Jun 05, 2011 | 2001 Ford Expedition

1 Answer

I have a Hyundai Accent 2002, when check engine ligth, i go tu service center. The code returned for scan is P1401. please, how fix this code ?


P1401 - DMTL Malfunction
The diagnosis module comprises an electromechanically driven pump together with a change-over valve and heater. The engine management system measures the pump's electrical current consumption while pumping air into the canister and fuel tank to check the system's leakage.
If the electrical current consumption is over the threshold value specified before in the memory, this means that there is a tank-system leak.

ghost45_9.jpg 2. DM-TL operating conditions.
(1) DM-TL monitoring operation starts only after all the conditions below are met.
A. Vehicle soaking over 4 hours and 30 minutes.
B. Engine coolant temperature over 2.3°C (36.14°F) when starting.
C. Ambient temperature between 1.5°C (34.7°F) and 40.5°C (104.9°F).
D. 6.4l or more gasoline in the fuel tank.
E. Over 20 minutes driving after starting.
F. During Air Bag is not working.

(2) And also you can check the DM-TL operation with simulation mode of HI-SCAN.

Mar 23, 2011 | Hyundai Accent Cars & Trucks

1 Answer

Orange engine light on and off at random. have 2 codes saying P1401 & P1237. Any idea what the codes mean?


No, but check engine light mean emissions control system
fault. Have Honda deal with it because the have the proper
diagnostic equipment and parts to correct the problem. I
wouldn't use after market parts.

Feb 13, 2011 | 2002 Honda Civic

1 Answer

Check engine light says on . code 1401,what does it mean?


P1401 - DM-TL air pump motor current draw is higher or lower than expected (normal = 17-36 mA).

This is an electrical issue with the pump, it's not related to a leak in the evaporative emission control system.

Dec 11, 2009 | 2002 Hyundai Accent

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