FORScan & 140L long range tank RR

[Raptor Family]

Was this in response to my post? i said it the DTE can be changed in FDRS somehow, not in Forscan.

Stumpm2, I think you are right. RCMUSTANG's link goes to changing the AFE average fuel efficiency (MPG)--not the DTE. There is a company called EZ Link, that makes a Diagnostic port style programer for some Super Duty trucks 23+ that need this done....nothing for our RRs.

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[RCMUSTANG]

Stumpm2, I think you are right. RCMUSTANG's link goes to changing the AFE average fuel efficiency (MPG)--not the DTE. There is a company called EZ Link, that makes a Diagnostic port style programer for some Super Duty trucks 23+ that need this done....nothing for our RRs.

That literally changes your DTE. I've done this with every modern ford i have when the factory computer is off. It corrects the DTE. When the stock DTE is high, i do this correction and the DTE adjusts to correct within a tenth of a mile on the DTE. If you've corrected the fuel tank size in forscan this should get the DTE correct.

OP, give it a try. It's free and there's nothing that is permanent All it costs you if a few minutes to do the math and make the adjustment. If it doesn't work you can just revert it back to stock. Nothing gained, nothing lost.

 

[Raptor Family]

That literally changes your DTE. I've done this with every modern ford i have when the factory computer is off. It corrects the DTE. When the stock DTE is high, i do this correction and the DTE adjusts to correct within a tenth of a mile on the DTE. If you've corrected the fuel tank size in forscan this should get the DTE correct.

Ok, now I think I see where we are going wrong. If the tank capacity was correct, minor adjustments I suppose could be made in AFE to change the DTE. But when the fuel tank capacity has changed over 58% not sure how/if this works. If I currently had a stable DTE--it bounces all over from 0 to 60 to 20 etc., maybe I could change it. As it is, I can't change the fuel tank size in Forscan. Following published Forscan instructions, changing the tank size in the dash module does not work. How do I change the Tank capacity in the ECM?

 

[BigMeatsBronco]

Here's the problem you're only doing one of the changes that's necessary to make this change. After you adjust the tank size.You also need to change the" fuel level source"...to IPC.

Here's proof

 

[RCMUSTANG]

Ok, now I think I see where we are going wrong. If the tank capacity was correct, minor adjustments I suppose could be made in AFE to change the DTE. But when the fuel tank capacity has changed over 58% not sure how/if this works. If I currently had a stable DTE--it bounces all over from 0 to 60 to 20 etc., maybe I could change it. As it is, I can't change the fuel tank size in Forscan. Following published Forscan instructions, changing the tank size in the dash module does not work. How do I change the Tank capacity in the ECM?

You cannot access almost any changes in the ECM. Only tuners for the most part cam do that.

As the previous post shows, make the tank size change there and then correct the DTE as i explained. That should fix your problem pretty simple and free. For you issue you would end up making the number higher i believe to get it right. We usually go down when the stock DTE is too high. I'm currently about .4 high. I'm going to drive it beyond a thousand miles and see if it still need correcting and then do it then.

 

[BigMeatsBronco]

You cannot access almost any changes in the ECM. Only tuners for the most part cam do that.

As the previous post shows, make the tank size change there and then correct the DTE as i explained. That should fix your problem pretty simple and free. For you issue you would end up making the number higher i believe to get it right. We usually go down when the stock DTE is too high. I'm currently about .4 high. I'm going to drive it beyond a thousand miles and see if it still need correcting and then do it then.

Being off by .4 is no big deal. And it's likely because Ford's algorithm does not use the actual full tank's capacity in the algorithm. Instead, it uses, i'm a more realistic number that people would fill their tank to like ninety five percent of the tank's capacity. Also, what is the number of gallons left in the tank? When the vehicle actually becomes empty, this small number would also need to be factored into the equation or fords algorithm

 

[RCMUSTANG]

Being off by .4 is no big deal. And it's likely because Ford's algorithm does not use the actual full tank's capacity in the algorithm. Instead, it uses, i'm a more realistic number that people would fill their tank to like ninety five percent of the tank's capacity. Also, what is the number of gallons left in the tank? When the vehicle actually becomes empty, this small number would also need to be factored into the equation or fords algorithm

I've seen numbers off higher than 1 mpg.

 

[Raptor Family]

Problem is now solved for U.S. Ranger Raptors 2025+

The only way to correct the fuel capacity to the new 35 gallon fuel tanks, is to reprogram the ECM—-period!
For those just reading, there is a lot of noise—a lot misinformed. Ford has moved the location of the stored data of fuel tank capacity on US built Ranger Raptors beginning in 2025 model year—this change is the same as various other F150s and Super Duties of different years. International (Thailand built) Ranger trucks can still change capacity using Forscan in the Instrument Panel Cluster (IPC) —or what I have called the “dash module” in other places. That is still the solution for those trucks—they have a dealer installed option there for a larger fuel tank. On a 2025 and later U.S. Raptor Ranger, you can hook up Forscan and physically change the fuel tank capacity in the IPC (I think it’s a legacy thing—the same dash is used worldwide and allows it)—it is just that it doesn’t do anything. If you use Forscan and attempt to change where the input should come from ECM or IPC, that is where it gets glitchy and goes crazy.

You have to re-program the ECM. There is no other way. It is done with the same type of equipment and procedures that you use to put a tune on your engine.

I just had mine done and it works flawless. My fuel gauge reads correctly, but more importantly, my DTE (Distance To Empty) and mileage per gallon are perfect—they behave just as it were factory—except, that it now has 565miles to empty on a tank of gas.
My Dyno/tuning guy, Cody Cutforth of StangHi cracked the code and created the programming to change the tank capacity in the ECM. As far as I know, he is the first to do it on a Ranger Raptor in the U.S. Another company, EzLynk, I believe does a few years of the F150 they have cracked. For those who know the tuning world, once somebody cracks it, it’s not all that long before everyone does it too.

For those contemplating an extended tank, or those that already have one and need their ECM programmed now, google StangHi and find Cody Cutforth’s website. This service is not listed there yet, as it was just created. The process works just like getting your engine tuned. If you are local to the greater Dallas/Ft Worth, TX area—just go to his shop. If you are not local he can code over the air. I think you could combine with an engine/trans tune and save money. If you want to see if the guy knows his shit, find StangHi on instagram—there you will see thousands and thousands of video reels going back over 15 years of cars on the Dyno being tuned. My truck, Velocity Blue paint, is on there ((this latest tune (we added over 100hp on top of last tune) isn’t up yet, but the tune from last October is there—it’s back about 15 videos and can be recognized from the engine picture showing all of the big red charge pipes)). The dyno charts and lead in shows it has a few Bolt-Ons. New video with latest dyno should be posted soon.

In conclusion:

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