Re: Getting P0261 and P0683 code at the same time. Also reading all other injector codes as well.
Try your FICM
I replaced both batteries and put my "spare" FICM
module on my 2004.
It had all kinds of codes but it was just the relay.
New relay and all of the codes went away and it was up and running again.
Fairly cheap, worth a try......
F350 Harley Davidson 4x4 Crew Cab Short Box. ARP Studs, Hog Performance 4" 304 Stainless Exhaust, Mishimoto Intercooler and Radiator, Coolant Filter, Extreme X & Mild FICM Tune. Edge CTS w/ EGT and Fuel Pressure. 2011 Rear Bumper Powder Coated Competition Orange, Bed Rug, Truxedo Tonneau Cover.
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