Hey all,

Still digging into the electrical gremlins on my '01 Durango. I've been trying to chase down the injector circuit and ran across the following:

Circuit diagram from service manual pg 8W-30-13

I have been checking the Power Distribution Center (Service Manual Page 8W-10-2) and I cannot find the 20a Fuse U referenced in the above pic....


HELP!

Thanks,

Steve

 

Would it be F/L 11????

 

Not 100% sure but that is on my list to check. Strange it specifically says 20a U, F/L 11 if memory serves is a 30a.

Steve

 

On the trucks, there is also a fuse up by the battery, inline style..... Maybe it's that one?

 

Fuses check out...checked all injectors for shorts and all injector pulse legs for shorts to ground...nada. I can see injector "pulse" with a test light to the DG/OR wire while cranking. The pulse looked "weak" on the oscilloscope while back probing...I'm at a loss here.

Any guru's want to chime in?

Thanks

Steve

 

What is the pulse voltage on the O-scope?

 

the fuse labeled o2 directly above the fuse labeled "G" happens to connect the same circuits referenced in the wire diagram, i would start with that one. (u4 and u8)​​​​​​​

 

Well I figured the mystery out...the timing kit had the wrong JTEC timing wheel! I compared the donor motor to the kit and found it was 100% fubar...swapped the gear from the donor motor to the installed engine and she fired right up...2 MAJOR lessons learned...

1. ALWAYS keep the parts you take off to compare 100% with the parts your intending to replace with.

2. READ THE 1 * REVIEWS on the product you are purchasing! Had I done so I would have found this:

Thanks everyone for the help.

Steve