No start, no power out of the ECM to the fuel pump

1997 FORD AEROSTAR
150,000 MILES • 3.0L • 6 CYL • 2WD • AUTOMATIC
Avatar
MCONWAY1
  • MEMBER
  • 1 POST
Van cranks but wont start. I replaced the fuel pump. When I plug in the OBD it says it cannot connect. Checked all fuses, got a new ECM but still wont read. I have power to the ECM but none out of the ECM to the fuel pump. Please help
Mar 20, 2019 at 7:10 AM
Advertisement
Avatar
MPNANTO
  • ✓ASE Certified Mechanic
  • 17 POSTS
  • ASE Certified Mechanic
Hi,

Thanks for visiting 2CarPros. Where are you checking for power out of the ECM?

Can you pull the fuel pump relay and see if you have 12 volts on pin 4? I have attached the wiring diagram below. If you do not have 12 volts on Pin 4 then look on the the drivers side fender for a yellow wire with a fusible link that will need to be replaced.
Images (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Mar 20, 2019 at 10:28 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.