12 mcx nytro starting issue

[maxeater]

above 20 degrees starts runs flawless
below 20 degrees starts runs 20 seconds shuts down flashs code 30
turn off restarts runs for 20 seconds does this 4-15 times then runs
great all day runnin mobil one 0w40 seems to be getting worse
any ideas where to look

 

[up-high]

30 is an oil pressure code. Maybe the sensor doesn't like 0w40? Maybe check your oil level also.

 

[maxeater]

oil is full doesn't make sense when it runs great once it gets warm enough
used to clear up after the oil light goes out now still happening 3 or 4 cycles
after the oil is warm

 

[up-high]

Maybe a problem with the oil pump as it's an oil pressure code?