pin 68 is an ecu digital ground output. It can only be the vss+ since its the reference.
Not used in your pin out simply means its not needed. The actual pin assignment is the same as you can see from 99-04.
1997 Mountaineer 5.0 for Coil-near-plug swap
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ATPCR
- Posts: 277
- Joined: 2023 Feb 18, 22:25
- Location: Hazel Green Alabama USA
- Vehicle Information: 1997 Mountaineer 5.0 that originally had a wasted spark ignition system. I'm converting to coil-near-plug. I will use a 4.6 Luxury Sedan PCM & modified powertrain harness. It will be reprogrammed to operate the Windsor 5.0.
Re: 1997 Mountaineer 5.0 for Coil-near-plug swap
I must have a first half of the year 1999 that is wired like a 1998. I just got back from going out back to the home workshop to do a double check of the VSS(+) pin location and after a very good look at the 104-pin connector from the 1999 Crown Vic, the VSS(+) gray wire with a black stripe on it is from the factory in pin #58 hole. Pin #68 hole has NEVER had a wire in it. It is blocked off down in the hole from the factory.
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decipha
- Posts: 6297
- Joined: 2021 Feb 15, 12:23
- Location: Metairie, LA
- Vehicle Information: Work Truck
'25 F-150 5L
Re: 1997 Mountaineer 5.0 for Coil-near-plug swap
not uncommon
vss wasnt used on most 99+ vehicles
vss wasnt used on most 99+ vehicles
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ATPCR
- Posts: 277
- Joined: 2023 Feb 18, 22:25
- Location: Hazel Green Alabama USA
- Vehicle Information: 1997 Mountaineer 5.0 that originally had a wasted spark ignition system. I'm converting to coil-near-plug. I will use a 4.6 Luxury Sedan PCM & modified powertrain harness. It will be reprogrammed to operate the Windsor 5.0.
Re: 1997 Mountaineer 5.0 for Coil-near-plug swap
Over 4 years ago, I got an idea to run a 5.0 off of a pcm intended for a c-o-p engine. I got off track a bit when a guy told me that I need to use a GM pcm. I thought that to be a bit odd but started researching GM stuff. I didn't like how that was going and switched my idea to using the Holley
Terminator X system for Ford. The price was a bit much and then when I found out that the Holley system would only tell you which bank had a misfire instead of the Individual cylinder, I decided to go back to the 1999 Crown Vic pcm idea. I had the harness and pcm already. (I ended up modifying the 97MM power train harness).
Again, I talked with the guy that recommended the GM computer. I asked, " why would someone want to use a General Motors ecu to operate a Ford engine?" He said that he meant "Grand Marquis". OK, that makes a little more sense. He also gave me the info for EFIdynotuning website.
Now I was well under way with my "limited knowledge" way to go about how to make all of this work together and function, including using a pcm from an old cop car that came from the factory with no PATS. My basis that all this would work was the fact that both the '97MM 5.0 and the '99CV 4.6 both have 36-1 trigger wheels among other similarities including the same size MAFs, injectors etc. including both have return style fuel systems. This may sound a bit like tuning an engine to an existing tune, but at the time, it all made sense to me.
Fast forward to now. I proved to myself that a Ford 5.0 could be converted to a coil-near-plug engine. That is something that FoMoCo NEVER
did with the 5.0 but could and should have. It wasn't until 2020 for Ford to come out with a pushrod c-n-p engine and it turns out to be a great place to source coils for my "proof of concept" project. This project is not a full-blown racecar, bracket, drifter etc, Just a work, "towing" truck which all of us know that if anyone is into vehicles beyond just jumping into the seat and driving to work, you have to own a truck (and trailer) to move race cars, antique cars, car projects etc.. I proved my point to me which it what matters the most.
I have learned a great deal here from Michael's site and will continue to learn as I go forward into the next 5.0 project that will be a bit more performance oriented than this first 5.0 c-n-p project. I t will be more along Michael's guidelines including a different size for the injectors, returnLESS fuel system and the most important item being, using a pcm from a 2003 Ford full size sedan.
Terminator X system for Ford. The price was a bit much and then when I found out that the Holley system would only tell you which bank had a misfire instead of the Individual cylinder, I decided to go back to the 1999 Crown Vic pcm idea. I had the harness and pcm already. (I ended up modifying the 97MM power train harness).
Again, I talked with the guy that recommended the GM computer. I asked, " why would someone want to use a General Motors ecu to operate a Ford engine?" He said that he meant "Grand Marquis". OK, that makes a little more sense. He also gave me the info for EFIdynotuning website.
Now I was well under way with my "limited knowledge" way to go about how to make all of this work together and function, including using a pcm from an old cop car that came from the factory with no PATS. My basis that all this would work was the fact that both the '97MM 5.0 and the '99CV 4.6 both have 36-1 trigger wheels among other similarities including the same size MAFs, injectors etc. including both have return style fuel systems. This may sound a bit like tuning an engine to an existing tune, but at the time, it all made sense to me.
Fast forward to now. I proved to myself that a Ford 5.0 could be converted to a coil-near-plug engine. That is something that FoMoCo NEVER
did with the 5.0 but could and should have. It wasn't until 2020 for Ford to come out with a pushrod c-n-p engine and it turns out to be a great place to source coils for my "proof of concept" project. This project is not a full-blown racecar, bracket, drifter etc, Just a work, "towing" truck which all of us know that if anyone is into vehicles beyond just jumping into the seat and driving to work, you have to own a truck (and trailer) to move race cars, antique cars, car projects etc.. I proved my point to me which it what matters the most.
I have learned a great deal here from Michael's site and will continue to learn as I go forward into the next 5.0 project that will be a bit more performance oriented than this first 5.0 c-n-p project. I t will be more along Michael's guidelines including a different size for the injectors, returnLESS fuel system and the most important item being, using a pcm from a 2003 Ford full size sedan.