Yeah I got a a weird one. I had a truck come to the shop with a dead injection pump (P1688 and P1689). It got a new Injection pump and lift pump from Vulcan Performance. After getting it running the WAIT TO START light is stuck ON even while driving. The grid heater are cycling as normal and canceling out either by time or by speed. I've done my AC noise check on the alternator and it was .260 at the highest. So the alternator was replaced and the new one is floating about .040 which is OK. But still got a stuck WAIT TO START. I check all the wiring for loose connection or pinched wires. I even call a local computer expert and they are stumped.
Yeah I got a a weird one. I had a truck come to the shop with a dead injection pump (P1688 and P1689). It got a new Injection pump and lift pump from Vulcan Performance. After getting it running the WAIT TO START light is stuck ON even while driving. The grid heater are cycling as normal and canceling out either by time or by speed. I've done my AC noise check on the alternator and it was .260 at the highest. So the alternator was replaced and the new one is floating about .040 which is OK. But still got a stuck WAIT TO START. I check all the wiring for loose connection or pinched wires. I even call a local computer expert and they are stumped.