Got a friends truck that won't run above an idle and is extremely hard to start I checked the codes and I got 251,252,253,1688 I know what the book says they are but does this mean It needs a new injection pump?? thanks for your input

 

Oh ya.

I've never seen that many injection pump codes on one truck at the same time.

It's all buggered up inside.


phox

 

As bad as it runs it seems real bad it will not rev up at all just idle.