Hey My Buddies truck has issues, It had a problem with the lifter fuel pump a relay failed, he re-sodered it , still would not start, changed the batterys, it would crank but wouldnt start, we bled the fuel lines still would not start. it was showing a check engine light. so we used OBD2 and got two codes p0341, and p0628.. at this point all the truck would do was crank no start. He cleared the obd2 codes then it started ... It runs great but I am haveing my doubts..

Question is: were these codes caused from the p0628 low voltage from the relay. Now that he had cleared them will he be fine. or is this just fluk and the cam sensor is the issue.... totally baffaled