- Joined
- Aug 3, 2010
- Posts
- 30,618
- Reaction score
- 28,861
- Location
- Usually not in Ohio
- First Name
- Andy
- Truck Year
- '77, '78, '79, '84, '88
- Truck Model
- K5 thru K30
- Engine Size
- 350-454
Does that first connector plug into the EGR solenoid? The single weatherpack connector must be for the O2, mine doesn't have it because I converted to a heated sensor. The timing connector is further to the left of the firewall. That single oily connector could also be for the temp sender, can't see the other side of it to tell. If it looks like the wire is green, it's for the temp sender, if it was like a tan color than it's probably for the oil sender that's above the oil filter area.