I have a 2012 F150 3.5 echoboost and recently I have had issues with poor idle, sluggish acceleration response, and turbo lag when I punch it. It has also been burning a lot more fuel than normal. Today, I replaced the 3 MAP sensors and now it won’t crank. It is turning over fine but it doesn’t seem like it’s getting enough fuel to start. It will hit and try to run for 1-2 seconds and stop, almost as if the fuel pump is out. Any suggestions before I call my local repair shop? Thank you!

 

Check for codes.

 

If you can, remove one or two spark plugs and see what they look like.

If dry, possible fuel supply problem.
If wet ,possible ign system problem.
Depending on which problem will determine which course we pursue..

 

Try using some starting fluid into the throttle body. I have done it many times as a quick diagnostic measure. If it runs briefly, you likely lost fuel pressure.
If its due, might be a good idea to change the fuel filter if its accessible.