Ved 12 help

need suggestions random power loss like derate but no codes has progressively worsened no air in fuel pressure good injector test good cylinder eq test good changed fuel pump just to see no change gonna start searching electrical connections do have abs and tcs light on

 

Had alternator replaced it was throwing injector codes all good on it now

 

Turned out abs and tcs light on causing random derate removed fuses and breaker runs perfect back to shop for brake work

 

Turns out that wasn’t prob back to derate but not as bad as b4 now fuel tanks not equalizing this truck gonna make go insane both vent lines and vents clear no blockage but fuel going down in left and up in right my truck is possessed