[cborg]

OK I am not a girl (but I am new) I thought I would give this a shot seeing that F350BLONDIE got 649 more views than my post. Thanks for looking, help if you can.
I have a 2001 7.3 It was having trouble starting so I replaced the GPR and it seemed to solve the cold start problem. Now it is running really ruff as if there is air in the fuel lines? The codes that are throwing is;
P1316 Injector driver module codes detected
P0675 , P0674 & PO672
Cylinder # 5,4 & 2 glow plug circuit
Any suggestions?

 

[sparvin]

Wait, you're not a girl? No suggestions here

 

[tbpower]

The 1316 means you have codes stored in the idm and have to do a buzz test to retrieve them. A lot of times this turns out to be the plug under the valve cover that has come unplugged or partially. You can unplug the 9 pin connector one at a time at the valve cover and see which make the least difference in running. If you do this make sure it can't short to anything when you start. The other option is to ohm out the 9 pin plug on the male side.

The pins will be arranged like this:
G - G - I - I - C - I - I - G - G

G = glow plug
I = Injector return
C = Injector common feed


If you just ohm out the glow plugs this will give you a good indication of which side to look at. Good glow plug should be around .8-2.0 ohms. If they are open this is a good indication that the UVC plug under the valve cover has come loose.

You can also look at this link for more detailed information on testing the glow plugs at the valve cover: http://www.thedieselstop.com/forums/f47/hard-no-start-check-here-first-75094/

 

[cborg]

Thanks much