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|"Added by eddie, posted by 410custom "
Now for the Holley install, this thing is so sweet, once you see what is possible with this Holley system for these conversions it is easy to justify the $$$ spent. The wiring is simplified BIG TIME if you want to convert a v6 truck to the Ford gt40/4r70w setup
That does not mean there is not some wiring, because there is.
And there is a complex installation happening here, but the end result is going to be oh so sweet. I am now saving my pennies so I can put one of these in my daily driven Bronco, and one in my upcoming Sport Trac project too.....
The Holley EFI terminator PCM and harness kit we got for this truck starts right here
This is the main harness (558-104).
This connects our drivetrain/truck to the Holley PCM
There are also sub harness that connect the truck and more drivetrain to the Holley main harness and thus PCM
Transmission harness (4r70w)
Input and output harness (for controlling e fans, ac, more)
Ignition input harness (558-304) (in our case this has leads for a CPS camshaft position sensor and CSS crankshaft position sensor)
Ignition output harness and then there are several various ignition harness' available from Holley.
This is where the majority of the wiring will take place depending on which ignition system you decide to control. We are going to stick with the factory Explorer EDIS waste spark ignition and the Ford coil packs.
To do this with the Holley you will need an ignition harness to connect the Holley PCM and some coil drivers to handle the two coil packs.
Our ignition is waste spark, which means it actually fires two cylinders at a time, one spark is simply wasted on a cylinder that is on exhaust stroke, wasted.
Holley does not make a plug and play ford EDIS coil pack ignition harness, instead we have to build it ourselves. This is true for many of the ignitions the Holley is capable of controlling. To run a coil near plug ignition is also very possible with the Holley.
When our kit was purchased many of the options they have now did not exist, but that is okay.. we are not afraid to do some wiring here.
For the ignition I am using a universal coil on plug harness (558-307) from Holley that plugs the terminator PCM into our 4 channel coil drivers (554-123) and then will be wired into the stock coil packs. This took a little bit to sort out, but has been done now, I even made a map in Autocad.
This is the PCM side of the main harness, you can also see the main power harness (coiled up) and I am holding the small plug where the Holley handheld 3.5" controller plugs in.
This is the ignition adapter harness for HEI ignitions, (ignition signals in) it includes connections for a 3 wire CPS and crank sensor. I had ordered a motorcraft 2 wire cam synchro (98-01 5.0) but during my research I would learn that other Holley efi users have a difficult time getting a reliable signal from the 2 wire. As a result I ended up ordering a 3 wire cam synchronizer and sensor…(96-97.5 5.0)
Here is the inputs and outputs accessory harness
main harness connections for various engine sensors listed below, on top n the pic the WB02 lead
I will cut these ends off and solder in the factory ford connectors
Here are the 4 channel coil drivers needed to run the ford coil packs
Again I will be removing many of these plugs and simply soldering the wires, making a tailored to fit streamlined drivetrain harness.
The Holley main harness (558-104) in addition to the sub harness above, will have connections to:
CTS (coolant temp sensor, PCM)
WB02 (bosch wideband 02 sensor)
Fuel Pressure Monitor (I ordered a transducer for this to add to our fuel rail)
Oil pressure monitor (ordered transducer to add to 5.0)
MAT (manifold air temp, for us Ford dudes this is the IAT intake air temp sensor)
Knock sensor (optional, we are not going to add one)
MAP (the terminator PCM has an internal MAP sensor that will work for non boosted setups) We may or may not add a separate map sensor depending on plumbing to the PCM
TPS (throttle position sensor, stock 98 explorer)
IAC (idle air control valve, stock 98 explorer)
Stock Explorer 5.0 systems that we will be deleting:
MAS, no more mass air flow sensor to plumb in
EGR, no more EGR system, a simple block off will be fabricated at the intake and passenger header
Canister purge and canister vent solenoids (I am working on adding separate holley module that can control a simple canister purge solenoid. I like to retain the stock charcoal canister and use a purge valve to burn off EVAP emissions into the intake just like the stock systems do)
Included in the main harness are several inputs and outputs, like for controlling AC WOT relay, electric cooling fans.
There are also two CAN BUS wires, I am not sure what these are capable of talking to or from just yet. aside from communicating with the Holley handheld or Smartdash (yes please!)
The transmission harness has wires for OverDrive on and off controls, NSS Neutral safety output (good for E shift t cases), and reverse light trigger.
Other loose wires are for power connections, fuel pump control, and some ignition stuff we do not need.
On my PC now are many Holley wiring diagrams and instruction pages. I have spent much time researching, plugging in and stretching, identifying and getting myself familiar with every single wire, until I was ready to finally begin the actual installation of the equipment.
I have been putting together Autocad drawn diagrams/Maps of the Holley wiring that will be going into this truck, once they are confirmed they will be posted.
I know my crazy! Do you?
2007 Sport 4door 4x4 4.0L SOHC V6 Ranger