2002 mustang gt engine code p1237 weldon db2025 external fuel pump - Ford Mustang Forum

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post #1 of 1 (permalink) Old 03-14-2011 Thread Starter
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Joined: Dec 2008
Location: Beacon Falls
Posts: 141
2002 mustang gt engine code p1237 weldon db2025 external fuel pump

hey guys i install a external weldon db2025 fuel system on my 02 gt and it is throwing engine code p1237 and i am just trying to figure out a way to rewire the stock harness to get the mil light to go off. i taped into the stock pump harness and ran my lean to the ignition wire so my pump goes on and off with the key but i had to disconnect my stock fuel pump and now the car is looking for it. does anyone know of a way to splice the wires to my new pump or any ideas i can do to make the light go off. the code p1237 is fuel pump secondary circut fault. it is dangerous to run my car with this light on? the car runs but i just dont want the ecu to mess with the a/f mixture and what not. please help thanks.

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