This will save a ton of money for us. A engine harness is 500, a used computer is 200, and a bauman controller is 500 more. We will come out 700 ahead and be OBD 2.
That's the idea behind it.
Let me see if I can get some questioned answered here.
In terms of processing power, the early Mustang stuff runs at 12mhz and has a single bank of memory. OBD2 runs anywhere between 18-27mhz and has 4 banks of memory.
The Explorer setup also has other benefits, such as a no distributor to worry about timing correctly or wearing out. There is also the ability to pull codes easily and cheaply, not to mention the capability to monitor actual engine data. Let’s face it, pulling flash codes isn’t any fun, and the ability to monitor data isn’t cheap on the Mustang stuff.
This package is really meant for people using the stock Explorer motor and stock electronics. I can make it work with a mild 351 as well. It's not geared towards the high HP junkies with big heads, cams, injectors, and MAFs. It would be very difficult to mail order a tune for something like that, but it is possible. If you have something like that PM me and we'll see what we can do to get you going.
O2 sensors: You will need to run the 2 front O2 sensors, I can delete the rears from your tune and harness.
EGR: It can be kept, and is recommended. Most people claim that EGR actually increases gas mileage. You will need to use a VSS for it to operate. But it can be removed safely.
VSS: With the newest version of my tuning software it looks like it can be removed safely. I have a PCM in the mail to one of our members now that has it removed. We should have feedback on this soon. If you are keeping EGR or the 4r70w you should use a VSS. Dana 20 folks can use the common Mustang type of VSS. Atlas folks will need to get the harder to find in-line VSS.
Harness: The engine harness is a must for obvious reasons. 4r70w users must have the transmission sub harness. This is good to have anyway as I can use the O2 plugs and OSS plug to add to your engine harness. If you don't have it and are using a c4-c6 etc, I can still source the connectors cheaply and add them. Like this: (note this harness is not complete).
I will also need the firewall harness that connects to the engine harness. I don't need the entire thing but get as much length as you can get from the engine bulkhead connector and cut off the rest. If you have a donor vehicle get the OBD2 plug with as much length as possible as well. Like this:
I think that answers most of the questions, I'll see about putting together a write up soon.