HELP 6.2 Diesel
 

Does a 1993 6.2 have a glow plug inhibitor switch?
Is the switch(Electrical plug looking thing with a green and brown wire going to it) on the passenger side by the 8th head the Fast Idle/ Cold Advance?

The switch you have identified near #8 cyl is most likely the glow plug activation switch.

yea the 2 wire sending unit on the rear passenger side is the cold start switch..one wire is a hot wire, the other (green)goes to the top of the i/p and to the fast idle switch on the throttle arm

thanks