Injector Troubles

On my way home the other day the truck started running horrible and shaking like I had a flat tire. When I got home I pulled the trouble code with my Superchips tuner and found P1316, which means the Injector Driver Module (IDM) has its own codes. Of course that requires a special scan tool to access using the Ford extensions.

The best price I found on a scan tool that could do all of that and run the extended Ford diagnostics is on the Autoenginuity software to run on a laptop. Check it out here: http://www.autoenginuity.com/products.html

I did some Google research and found several forum threads on this issue.
http://www.ford-trucks.com/forums/868509-dtc-p1316-need-help.html
http://www.powerstrokenation.com/forums/showthread.php?t=36476

The most common problem is that the under valve cover (UVC) harness comes loose! What, there is a harness under the valve cover? Yes, what a crazy design. The harness plugs into the valve cover gasket and the main harness on the outside also plugs into the valve cover gasket.


I am about to go measure the resistance at the valve cover gasket connectors to see if it has come loose inside. Here are the wiring diagrams I have collected to help figure this out.





Hopefully these will help someone else out with this issue. Let me know if it does!

Darren