Join Date: Oct 2014
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... Question: Am I on the right track?
Not in my opinion. You just had a shop replace - among other things - your #8 injector and now only days later you have a cyl #8 contribution/balance code. I'd take the truck back to whomever did the work and tell them to make it right.
Maybe it is something as simple as a bent FICM pin or loose injector connector, but why make it your problem? You paid them to make it their problem.
2004 F550 CC Lariat
BPD oil cooler relocation and upgraded EGR cooler (spooled), BPD oil bypass filtration, aFe Magnum Force CAI, Mishi radiator, 7.3L fan clutch, EC1 ELC, XDP coolant bypass filtration, '08 trans pan/filter, PTP direct clutch solenoid, blue spring, 6.4 starter, MBRP y-pipe, BD boots/clamps, '05 intake elbow, ccv reroute, Torque Pro + OBDLinkô LX, Autometer EGT