2002 Ford F150 turns over but won't start.?

Question

I have a 2002 Ford F150 V6 truck. When I turn the key, it will turn over but will not start. Fuel is making it to the fuel rails. Both of the large relays under the hood click like crazy in sequence with each other. Changed both of the relays and they still click. It all started after I unhooked the battery and changed the MAF sensor. Any info would be greatly appreciated. Thanks.

Answer 1

what about the module?, are you getting fire at the plugs?. you say gas is to the fuel rail, check the fuel pump regulator, it might be bad and not letting the gas to reach the injectors.