Help! No Start: '88 GM 2.8L MPI V-6

[peter paul fenske]

Howday..

A few ideas..

code 12 means no ref pulses..
Are you sure you are getting ref pulses..
No ref pulses no injectors..

Yes the silly coilpak in bypass can run independantly and
not give the ecm ref pulses..ie lotsa sparks

Otherwise check the oil pressure fuel pump switch but
not likely..

Besides that it is past my bedtime and thats all the cents I have

l8tr:peter