98 Mercury 150hp DFI 851 trigger error, Pulling the hair I have left out!

[DsOutboard]

I have an 851 trigger error. Engine runs good but after 15-20 minutes of running engine, seems to misfire, no injection/injector faults.
At cold start, starts & stahls 3-4 times, then runs & idles. Fuel & air pressure are in spec.
Throwing multiple codes:
132 Trig signal
15 Map
120 TPI 1
125 TPI 2
108 TPI 1 Limit
169 TPI 2 Limit