Check engine light came on so I checked the codes and it left me with 0215 and 1689... Time for a new injection pump???? Thanks for the help!

 

I have been reading up on these codes on the board and it sounds like a electronic problem rather than the injection pump itself (as far as its mechanical condition) When the check engine light came on the tach wasnt working, I was just pulling out of the driveway... I noticed it wasnt working however the truck was running fine... I shut it down and re started it and the check engine light was off and the tach was working, but it still stored the codes... Any help is geratly appreciated!!!