2002 Mercury Cougar 2.5L with engine code P1237

Question

I have installed a fuel pump in April. Then in June replaced the whole assembly with float from NAPA. I also installed a Dorman Fuel Pump Driver Module at that time. Is there anything else in the system that would not fuel pump to prime with key on. One day later it started and is still running.

Answer 1

Have you reset the inertia switch? driver side a piller 

Answer 2

P1237 MERCURY - Fuel Pump Secondary Circuit Fault
Read more: https://www.autocodes.com/p1237_mercury.html