Ford Powerstroke Diesel Forum banner
1 - 5 of 5 Posts

·
Electrical Ogre
Joined
·
12,276 Posts
The IDI dash harness will be "missing" a few things that the PSD harness has, like the OBD connector and the BAP sensor. The firewall connector faces are the same, just more or less wires in different slots depending on application.
 

·
Electrical Ogre
Joined
·
12,276 Posts
Take about an hour, drop the steering column and pull the dash off the firewall. That way you can just unplug everything off the dash, and plug the donor harness on. It would be nearly impossible to do it with the dash in the truck.
 

·
Electrical Ogre
Joined
·
12,276 Posts
I would think the chassis harness should be the same for IDI/PSD, being both have the fuel tank valve, and no tank mounted pumps.
 

·
Electrical Ogre
Joined
·
12,276 Posts
I am assuming the IDI is a 92-94 Yes? You mentioned the PSD is a 95, but no year on the IDI.
Assuming the IDI is the same body style, not a bricknose, the existing VSS in the chassis harness should be fine.

The transmission harness should be a sub-harness that plugs into the main underhood harness, so you can swap it in when you change the underhood harness. The harness swap (trans harness from the IDI) with the 5 speed will negate the E4OD's MLPS input for park/neutral start. In the vicinity of the steering column, you will find a connector with a bypass plug inserted into it. Remove the plug and connect the harness to the clutch safety switch.

You will need to keep the bellhousing spacer for the swap, but the crank spacer for the flexplate isn't needed.
 

·
Electrical Ogre
Joined
·
12,276 Posts
Okay, that will make most things plug and play then :nod:
 
1 - 5 of 5 Posts
Top