And Now you doICP pressure? No. I dont have a scan tool of the sort
Monitor ICP pressure (in psi plz) and IPR%
The ICP will show you why & when of the 1280 and the IPR will show you how hard the system is having to work to make that pressure.
If you're much below 500psi the computer won't trigger the IDM to fire the injectors.
If the IPR is more than about 40% then it's working too hard (65% is about max)
Low psi with a high % means that either you have a leak in the HiPres Oil system that the pump is having a hard time keeping-up with OR the IPR itself maybe not be doing what the PCM is commanding it to do.
The other two codes are Not keeping you from Starting..