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One point of warning - there are two green with white stripe (GN-WH) wires! The one you identify is the correct one. There is another GNWH in the bottom row Pins 18-25.
I was alerted to the 2 wires of the same color by a YouTube that someone on the forum posted. I cannot find that post now- he had 3 superduty’s taken apart showing how to access upfitters and the SEIC-PTO bundles. He called the correct pins 7, 9, and 10, which was not what my 23 is. Mine is pretty close to what you indicate. I say pretty close because I did not photograph, and the connector end that I took out of the truck did not have all of the pins numbered.
However, YouTube also said the second GN-WH wire was pin 18 which was dead giveaway as to which GN-WH to use.
Have fun pulling out that wire bundle. My leads were so short I had to pull the box and decouple all of the connections to get to this bundled SEIC/PTO connector. Once I decoupled the SEIC/PTO and had the wire leads out of the truck, there was about a mile of electrical tape holding the wire tips together. 3-inch longer leads would have saved a lot of time and effort, but you would still have to “see” the bottom row wires to solve the two GN-WH wire issue.
PS, I could not find the pass-through wires at either end!
The good news is that I'm color blind (I'll probably use the pin layout vs colors), I've already located the wire bundle, and I've already located the upfitter pass-through wires.
Did you do the mod yet? I'm 99% sure the pins above were correct, and I have some 20k resistors left over from doing this mod on my 2018. I just haven't had time to actually wire in the resistor and wire the upfitter.
VTechie, yes I have. Sorry I did not take photo, but I have zero intention of going back into the passenger kick panel. What a pia for a 72-year old guy.
Mysticbus, yes it does. Wire connections are the same. I see that the SEIC/PTO connector bundle VTechie provided says no wire on the gas, but it is there and it works with whatever resistor (speed) you want. Since there is no stacking/sooting in a gasser, I think gas does not need the 1400 rpm’s a diesel needs. 30k resistor puts me just under 1,000 rpm’s. I used 20k resistors and had one on hand for the 2022 Platinum diesel Fird never built. 1,000 is plenty for a gasser to keep alternator pumping out without overheating. Remember parking brake must be on and in park before you hit the upfitter switch or it will not work. Touch brake pedal or shift out of bark, back to base idle.
Originally Posted by Mysticbus
Does this work for gas?
Last edited by JohnD333; Jun 4, 2023 at 09:09 PM.
Reason: Typo
Can anyone give a better description of the connector location? Or a link to the full builders guide? I’ve looked all over the passengers footwell area and can’t find it. Also, there are several wires with various pto labels on them in the bundle with my aux switches under the hood. Does anyone know if these could be used somehow? There is no vref or rpm so I’m not sure. Pic for reference of what I’m talking about
Can anyone give a better description of the connector location? Or a link to the full builders guide? I’ve looked all over the passengers footwell area and can’t find it. Also, there are several wires with various pto labels on them in the bundle with my aux switches under the hood. Does anyone know if these could be used somehow? There is no vref or rpm so I’m not sure. Pic for reference of what I’m talking about
The wires you want are located in the customer access bundle. It should be located behind the passenger side kick panel. Remove the kick panel and it should be visible and have a label similar to what you have pictured.
Finally found the connector and hooked everything up. Works great. I also tried the “relay mod” to trick the truck into thinking the parking brake is on so you don’t have to turn it on each time. But, these trucks are smarter than that and it did not work.
I have had my kick panel off several times and can't find this harness. I have a 6/23 build and have looked several times. Any help would be very appreciated.
I did this on my 2022 but my 2024 I’m just going to bite the bullet and buy BD Diesels kit for $110. Then I can dial it up from 900-3000 RPM rather than just a fixed RPM from the resistor
I bought a potentiometer to do the same thing but I can't find the harness
i installed a BD Diesel adjustable high idle kit (potentiometer) on my 23 not too long ago.
it’s actually made for other years super duty but I just came here and got help figuring out how to translate the wire colors and make it work.
been happy with it as well. It’ll go from like 900-3000rpm
im usually around 1000-1200rpm when I use it
all the wiring you’ll need to do is right inside the passenger footwell but it’s tucked back against the outer wall/surface and pinned in. Was a bitch to get to.
One point of warning - there are two green with white stripe (GN-WH) wires! The one you identify is the correct one. There is another GNWH in the bottom row Pins 18-25.
I was alerted to the 2 wires of the same color by a YouTube that someone on the forum posted. I cannot find that post now- he had 3 superduty’s taken apart showing how to access upfitters and the SEIC-PTO bundles. He called the correct pins 7, 9, and 10, which was not what my 23 is. Mine is pretty close to what you indicate. I say pretty close because I did not photograph, and the connector end that I took out of the truck did not have all of the pins numbered.
However, YouTube also said the second GN-WH wire was pin 18 which was dead giveaway as to which GN-WH to use.
Have fun pulling out that wire bundle. My leads were so short I had to pull the box and decouple all of the connections to get to this bundled SEIC/PTO connector. Once I decoupled the SEIC/PTO and had the wire leads out of the truck, there was about a mile of electrical tape holding the wire tips together. 3-inch longer leads would have saved a lot of time and effort, but you would still have to “see” the bottom row wires to solve the two GN-WH wire issue.
PS, I could not find the pass-through wires at either end!
Good luck.
The pass through wires are located on the passenger side. The engine bay ones are taped to a wire loom on the fire wall. Those were easy for me. The cabin side were a pain. They were laying on top of a grey liner under the glove box. Hope it helps. The grey liner is on at the top of photo. Looking at the liner. Put your hand on the right side just on top.
So I completed the idle mod on a 2024 plat today. I installed a static 20K ohm resistor for a 1200 rpm idle. Wiring it in was easy... Finding the SEIC connector was a royal PITA. It's tucked up way too high, practically hidden from any view, and then pinned down using a push pin. Friggin Ford crazy.
The only partial view of the connector I had was looking through the middle of the passenger door jam -- after removing the molding and the right side of the dash end cap. I saw nothing from looking up through the footwell or peaking through the removed glovebox area. The video linked below is for installing the BD Diesel high idle kit on a 2023, but it was EXTREMELY helpful. The author mentions at one point he unpins a harness behind the glovebox which is pinned to the passenger dash end-wall to get access to the SEIC connector. He was spot on and I could have never figured this part out without the help offered here:
I only removed the pieces he removed and I found that using a long thin screwdriver and a push pin removal tool at the same time was the only way I could push/pry to detach the connector from it's push pin mount. About 40 minutes of fun!
PS: Go slow and easy removing all plastic dash parts if you are doing this in very cold temps in your garage.
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