No secondaries? Try this....

[Mike Gallion]

Admittedly, I pulled a bonehead move in in causing this issue, but am willing to share and possibly help out a fellow SHO owner.

Swapped a 3.2 into my 95 MTX . Secondaries worked fine prior to the swap but didn't work post 3.2... EATC allowed the defroster to blow immediately with the engine cold.
Lots of head scratching and double checking finally revealed swapped connectors. Turns out the CELO connector and the secondary soleniod can be reversed since FORD used the same connector on each.
The ECU was damaged in the process and was replaced.

 

[1993MTXSHO]

Admittedly, I pulled a bonehead move in in causing this issue, but am willing to share and possibly help out a fellow SHO owner.

Swapped a 3.2 into my 95 MTX . Secondaries worked fine prior to the swap but didn't work post 3.2... EATC allowed the defroster to blow immediately with the engine cold.
Lots of head scratching and double checking finally revealed swapped connectors. Turns out the CELO connector and the secondary soleniod can be reversed since FORD used the same connector on each.
The ECU was damaged in the process and was replaced.

The correct wires are green and red for secondaries. Think green and red are like Christmas, aka secondaries screaming, the other wires are black and yellow, and sting your ecu like a bee. So green and red in secondaries good, black and yellow bad, and it fries the secondary circuit.

 

[AREA 91]

The correct wires are green and red for secondaries. Think green and red are like Christmas, aka secondaries screaming, the other wires are black and yellow, and sting your ecu like a bee. So green and red in secondaries good, black and yellow bad, and it fries the secondary circuit.

Gee, I wonder where you learned that??????????????
:wave:

BTDT

 

[Mike Gallion]

Fried

The correct wires are green and red for secondaries. Think green and red are like Christmas, aka secondaries screaming, the other wires are black and yellow, and sting your ecu like a bee. So green and red in secondaries good, black and yellow bad, and it fries the secondary circuit.

Sure, now you tell me!

 

[AREA 91]

Hey, it took me 2 computers in a row to figure it out years ago.
I won't make that mistake ever again!

 

[1993MTXSHO]

Gee, I wonder where you learned that??????????????
:wave:

BTDT

Hey, it took me 2 computers in a row to figure it out years ago.
I won't make that mistake ever again!

When we were workin on that 89, and burned up 2 computers in a row after we knew the issue after the first one:laugh_ti:

 

[Mike Gallion]

Just glad my 3.2 mtx is running properly again!!