Randy92

Car has been running fine but now all of a sudden it does not want to start..
Spark plugs are working, and fuel pump turns on when you move the key forward(without trying to turn on vehicle) but somehow engine wont turn on...
i found the inertia box/switch and pushed the button and the car turned on but today it wont turn on now..? any ideas whats wrong? i pushed the button again and it wont turn on now.. could it be the fuel pump relay?

Tony71502

If your pump is working then its not the fuel pump relay. Are you sure your getting spark?

Randy92

yeah my friend got shocked when he checked haha ...is there a way to reset the fuel pump switch/inertia box thats in the trunk?

mustangGT86_05

Again, if fuel pump is turning on it is nothing to do with that switch or the circuitry, since the inertia switch is for safety it shuts down the pump entirely. Have you checked timing? Or checked fuel pressure?

Randy92

well fuel pressure was good so how would i check timing?

Randy92

the fuel pump turns on(car wouldnt start) then after i pushed the inertia switch (yesterday) it started but now its not turning on again...