I HAVE A 04 6.0 F350 HAVE A MISFIRE HOT OR COLD. SMOKE ON START UP, INJECTORS REPLACED LAST TWO YEARS. POWER PACK IN FICM REPLACED APRIL THIS YEAR WITH A DORMAN PART. HPOP PUT IN FEB THIS YEAR, 183,000 MILES. HAVE SOLUS PRO SCANNER LAST NIGHT RAN KOEO, KOER, TEST ONLY SHOWED NUMBER 1 GLOW PLUG CIRCUIT BAD, BATTERY VOLTAGE BUZZ, CRANK AND RUN STAYED ABOVE 12.5 VOLTS, FICM NEVER GOT BELOW 47.5 V. THIS MONING RAN INJECTOR BUZZ TEST BEFORE ENGINE STARTED SHOWED ALL 8 INJECTOR CIRCUITS LOW, CLEARED CODES RAN AGAIN NO DTCS THIS TIME, BATTERY VOLTAGE AT 11.5 AND FICM NOT BELOW 48 DURING BUZZ AND CRANK OR RUN. HVE ALSO DONE THE HARNESS WIGGLE TEST WITH NO RESULTS. WHAT TO DO NEXT.

 

Battery voltage at11.5 seems low. . I'm wondering if you have a bad injector or an injector seal or copper crush washer leaking.