My car always get a cel at cold starts. Sometimes it's only 71, sometimes, 71 & 72, sometimes, all 71-74. If I let the motor warm up and reset the ecu. It goes away and won't come back until next cold start.

I'm running 440 injectors with VAFC2
I'm only running 7 psi with one step colder plugs gap around .30. Even happens with brand new plugs.

 

bump cause i have the exact same problem..