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P1237 Diagnostic Trouble Code Discussion for February 2021

Fuel Pump Secondary Circuit Malfunction


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Trouble Ticket Help Requests for DTC P1237
Help Request Posted
2003 Ford Mustang 3.8L MIL Lamp on VIN: 1FAFP40463
P1237: fuel pump primary circuit fault. ... bad and it was replaced. It started ok,it ran ok for a couple of weeks but it came back with the cel on and code p1237. I noticed that the rail pressure sensor was reading 85/92 psi all the time(I went..
February 11, 2021
2003 Ford Mustang 3.8L MIL Lamp on VIN: 1FAFP40463
P1237: fuel pump primary circuit fault. ... bad and it was replaced. It started ok,it ran ok for a couple of weeks but it came back with the cel on and code p1237. I noticed that the rail pressure sensor was reading 85/92 psi all the time(I went..
February 14, 2021