All those definitely go to the block grounding point.

I found the other ends on my wiring diagram:


1. White with blue stripe: ECM Term "A9" (Diag Enable)


2. White with black stripe: (they say black with white stripe but no matter): ECM Term "A12" (Ground)


3. white with green stripe: ECM Term "D6" (Oxygen Sens LO)


4. Brown with blue or aqua markers: ESC Module Term 2

These do look like pretty important wires, I'm surprised it would even run without them being connected. I'd hazard to say that it'll run MUCH better with them properly grounded.

BTW, re: your other post, Term "C9" of the ECM is for a Crank signal, it's a WHT-BLK wire that is supposed to go to the starter relay.

According to the diagram, for the V6, there IS a "starter relay" in the Fuse Block assy, it's got BLK-WHT, WHT, BLK-RED, and RED-BLK wires going to it.

The BLK-WHT wire off the relay ties to term "C" on the starter solenoid, if that helps.

I wonder if they got the wire colors BLK-WHT & WHT-BLK swapped in the diagram. Should be easy enough to figure that out, however.

Good Luck and let us know what happens.......ed






'90 Troop 3.4 LS
'89 Troop RS (Has Valve Issues, needs Counseling)
HI, I'm Ed and I'm a Trooper-holic!
Keep On Troopin'......