injector codes 2015 Pete 579

[watkinstt]

No matter which injectors were capped the truck failed test. they were capped front three, then rear three, and then all possible combinations of three at a time. 1,2,4 then 1,2,5 then 1,2,6 for example and continued throughout the rest. Alread changed the relief valve. So, it appears I must have a pump issue then.