Calibrate Your Superduty with 37s using FORScan! PROVEN FORMULA!

Calibrate your super duty for free with 37s and FORScan! Code that worked for me and my 2019 Ford F250 with 6.7L Powerstroke! If your not a subscriber, please follow! My truck came with 3.55 gears and Michelin LTX A/T2 Tires. Follow my IG page @motor_head18 and support my channel by liking the video and subscribing to MOTOR HEAD!
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[@billpro]

A great mod! AAE gets you to 2634 mm over all diameter tire. After some tweaking with the numbers, A8B gets you a tad closer at 2644 mm which is the absolute maximum Forscan will allow without a Check Engine light on my 2017 F250 Power stroke. With 37 inch Nito Ridge Grapplers it gets me within a 0.5 MPH difference. NO check Engine lights.

[@MotorHead18]

Thanks a lot brother!

[@nickledford8125]

Still running clean? I'm getting ready to do the same change for my 18

[@The_Saylor_Adventures]

Hey Billpro what’s your full code? When I type in the A8B is kicking back an error. My current code is 0163-0AAE-71CD. As soon as I try to add A8B it kicks back…? Thanks in advance

[@sledhead904]

How about a code for 32.5 I'm runnin 275/55/20

[@Jibbs_actual]

@billpro what is your full code for this? When I enter your 0A8B it kicks a warning message saying “incorrect checksum of data entered” - Did you change the 71CD to something? When I did the video 0AAE I am still off by 1.6mph running 37x12.5R17

[@MichaelRirie]

Thank you!! This got me within 1mph at 80mph!! No CEL. I’m running Nitto Trail Grapplers 37x12.5r18 with about 50% tread left, just FYI.

[@MotorHead18]

@@MichaelRirie yes! Glad it worked

[@robertwolak1613]

Dude!!! I made the changes with Forscan and my speedometer is dead nuts on!! My 37/18 Wildpeaks measure 35.5 actual with weight on it and this mod made my speedometer go from 3 mph off to 0. I appreciate the research you did!!

[@MotorHead18]

No prob!

[@billhenderson8051]

Thank you for going through the pain and suffering to figure this out. It works perfectly in my 2017 f250.

[@MotorHead18]

Glad to hear Bill!

[@roybeltran3767]

Just did mine today and it’s spot on thank thank you it helped me out tremendously

[@MotorHead18]

Awesome!

[@CW-Martin]

Your code worked for my 19. Running 37s and only 2 off. Better than 6....that should keep me outta trouble.

[@MotorHead18]

That’ll do

[@chadbenedict2740]

thank you for making this video, 0AAE parameter code worked on truck, I have 37 inch Tires, my speedo is right on and no active codes after changing parameters

[@MotorHead18]

Glad it helped! Mine is still doing well with no check engine lights or anything. I can't complain!

[@slick240z]

Just did this and it works. Thank you so much!!!!

[@MotorHead18]

SWEEEET 🇺🇸

[@toddadamsaz]

I have a 2012 F150 35x20 how did you get to your formula for the changes in ForScan?

[@wyliecoyote5.082]

Great information on the 37 tire calibration. I was hesitant to make this change as alot of people told me it would throw a CE code on my dash. I'm gonna give it a shot today. Again thanks for the video and hope this was a stupid comment.

[@MotorHead18]

Wylie coyote5.0 lol! I’m hoping it works for you too!

[@wyliecoyote5.082]

@@MotorHead18Sorry, I meant to say I hope this wasn't a stupid question !!

[@MotorHead18]

Wylie coyote5.0 lol

[@wyliecoyote5.082]

@@MotorHead18 ok I done the calibration with ForScan and it works really well!! I'm at 1mph difference at 60mph, 70mph, 80mph. Before the calibration I was at 4 to 5 mph off at those speeds!!! Very happy, thanks brother!!!!

[@MotorHead18]

Wylie coyote5.0 Nice, spread the vid and word!

[@81recinos]

Im about to lift my 2023 f250. i think ill just take it to the dealership

[@MotorHead18]

Raise that bad boy

[@robertbessey5686]

Hey buddy. I live in the GC area also we should get together and compare trucks and discuss mods.

[@MotorHead18]

I wish there was a group that did this often!

[@motorcyclepimp]

Success on 2018 F350 Lariat Diesel on 37" tires! Thanks man

[@MotorHead18]

Yesssir! Another success story

[@willroe1051]

Can’t wait to try this on my 17 when I get off today was hesitant in doing the one on spreadsheet because it says throws cel

[@MotorHead18]

Give it a shot, why not

[@brucehirsch5437]

I have an 08 f350. Where would I go to find the codes to change mine?

[@doddi1952]

I understand that 0aae is the 2734 circumference of the 37" tires but what is the change of 7166 to 71CD. Where did you get that from ?

[@Jibbs_actual]

Edit: yeah this was my question too but after trying it you do want to change the 7166 to the 71CD. He wasn’t super clear about it but it works. However I’m still off by 1.6mph running 37x12.5R17’s on a 19

[@marcoslechuga7210]

I got 38 on my truck. Do you think it would still be somewhat accurate?

[@MotorHead18]

Somewhat yes

[@colt4528]

Great information I have a lifted truck with 37’s and I changed the factory gears out with 430 gears for towing reasons in the hills how can I program that?

[@MotorHead18]

I know you can easily adjust if those gears come from factory of a Ford! Easy adjustment.

[@billyhands9745]

Great, so where would i find the code for a 15 plati running 40'S? any help much appreciated.

[@MotorHead18]

Anything larger than 37s will cause a check engine light unless you use a calibration tool. Even then then are capped at a certain size tire.

[@letsgobrandon7112]

Great video. I just bought new wheels & tires (37’s) and will be making this change on my 2019 F250 Lariat in 2 weeks when the wheels come in. Just curious,...how did you figure this out?

[@MotorHead18]

A lot of research, that’s for sure!

[@MotorHead18]

Still going strong, no codes or issues 14k miles later!

[@jaked4285]

My F450 ‘22 I just went to 37’s on yesterday, and my truck has 4.10 gears.. instead of the "0163" code, what would I use?

[@refsa01]

I changed my f250 2018 diesel 6.7 tubo lariat, 6inch lift down from 37x12.50r20 to 37x17x13.5 and I want it done right, where or whom can I go to get it done. From Texas 101 airborne 67!

[@MotorHead18]

throw a dart on a map of Texas and you will find a reputable diesel shop haha I miss TX

[@chasebolyard1962]

Question on your OBD2 adapter - I bought the same one based off of this video and a couple others I watched. When I connect to my truck (2019 F350 Platinum) I get a message in Forscan that says the adapter is not compatible with my vehicle. I have made a couple changes and it seems to work just fine- just curious if you ever experienced this? I didn't see the message that I get pop up on your laptop when you were connecting.

[@MotorHead18]

I think I may have had to install the driver before utilizing the adapter. But I’ve never had issues with the adapter

[@adambowers496]

So if my truck is already tunned with ez link its ok to use forscan right?? I gotta get this check engine light off its driving me nuts 😅

[@MotorHead18]

Yeah no issues using ez link and forscan.

[@chadcornstubble4095]

Great video. I have a 2020 f250, any idea of codes that will also keep my engine light, etc.. off? I just put 37’s on my truck.

[@MotorHead18]

Not sure, 2020s and up are always in the works.

[@chadcornstubble4095]

@@MotorHead18 thank you, that’s what I am finding. Any idea how to get everything back to factory settings? Seems a couple of other things changed when I changed the tire circumference.

[@MotorHead18]

@@chadcornstubble4095 I would just look at the factory codes for your truck and go down the line if there was a previous owner

[@TSM8555]

Would it even matter if the wheel size was 17s as long as the tires were the same size?

[@MotorHead18]

Not all 35' tires measure 35 (if any) once actually mounted on the truck, which is where narrowing down the mounted diameter helps

[@z0sickvett60]

What’s the stock tire size I’m trying to put my truck back to stock. Tia

[@MotorHead18]

Reference your data sticker along your driver door panel

[@blakewerts1678]

Will this vold the factory warranty?

[@donpresley4024]

Any idea what changed in 2020 Platinum? When I change my codes it turns several things off. Turns on my tool wrench, turns off my anti skid and a couple of other things.

[@MotorHead18]

Last time I checked, 2020 codes were slow to start. Different systems than the prior generation. Hopefully it starts to build up soon!

[@skylersearle4665]

I have the 2019 f350 lariat with 3.55 gears stock tires were the 275/65r18 I just had 37x12.50r18 put on. Would I be safe with this formula?

[@MotorHead18]

Yup, give it a go.

[@paranoid1123]

What would be the code for a 2014 to change to 38’s not 37’s?

[@MotorHead18]

Not too sure bobby.

[@25torgeir]

Would this work for 2017 F-450 4.30 rear end ration.?

[@MotorHead18]

Not this specific code

[@joegracia77]

Have you came up with a way to adjust the tire pressure sensors? my tire pressure sensors are indicating that I need more pressure in the rear tires but the max pressure I can use in my current 37s is 65 PSI.

[@MotorHead18]

Yup I updated the tire pressure settings to 50 front and 40 rear with forscan too!

[@glenncaswell9062]

I just got my 2019 a few weeks ago and will be recalibrating as soon as I get Forscan set up. Thanks in advance for the help with that. How did you decide how much pressure to run in the 37's? I'm set at 55/50 now.

[@joegracia77]

@@glenncaswell9062 I did as @Motor Head suggested and it worked perfectly!

[@fawkyooo7377]

How did you find the line of code to change the [Tire Size] and do you know if FORScan can change [Gear Ratio] Thanks in advance.

[@MotorHead18]

Trial and error and yes!

[@richardarcher8421]

dose that code work for 2017's

[@MotorHead18]

Yessir

[@CDUBMERC]

What other mods do you recommend using forscan? I have the same truck you do but I’m a 350.

[@MotorHead18]

CDUBMERC I’ve done about 10 others

[@CDUBMERC]

Motor Head what other changes did you make with the forscan if you don’t mind sharing. I’ve just started with forscan and looking for recommendations while I’m in there. Thanks.

[@MotorHead18]

CDUBMERC Nav use while driving, tire psi threshold, accurate MPG readout, add auto regeneration option, add average speed to name a few!

[@CDUBMERC]

Motor Head, Nice! Thanks for the info 👍👍

[@MotorHead18]

CDUBMERC No problem!

[@edwardallen6836]

What kind of fuel mileage are you getting with the 37 on the 250

[@MotorHead18]

13 winter 14 summer

[@Boatflipit]

I’ve got a 22 on order any idea if this voids any warranty

[@MotorHead18]

No, your good

[@Vapor_24]

Where did you get the new code from?

[@MotorHead18]

Research

[@z0sickvett60]

I did it on my SCTx4 tuner but the check engine still came on should I do it with the ForScan also?

[@MotorHead18]

Give it a shot for sure

[@z0sickvett60]

I’ll try it thanks

[@lukeleblanc9283]

Anyone figure out a code for 37s and 4:10s

[@leilarobinson9489]

Does this same code work on a 19 F250 with 3:31 gears?

[@MotorHead18]

Only for 3.55

[@jamiejohnson8114]

I have a 2015 F250 with 40's. You think it will work for me?

[@MotorHead18]

You can try lol get it closer than 7-9mph off lol

[@jamiejohnson8114]

@@MotorHead18 ya it's off bad.

[@MotorHead18]

@@jamiejohnson8114 shoot, I bet.

[@keithsetzer6631]

I have a 2022 F250 KR. I was about to make the same changes you made but my code is different. Mine reads C100-3146-54CC Any recommendations for me?

[@MotorHead18]

Ooooo, not sure on the newer models

[@Randymcsendy]

Skip to 3:30

[@collingeis4800]

Do you know if this works on a 2022?

[@MotorHead18]

Not sure brother. Did you try it?

[@MrBlackbeauty74]

Great video. Do you know if this value will work for a 2016 with 355 gears on 37s?

[@MotorHead18]

MrBlackbeauty74 No hurt in giving it a shot. If it doesn’t work i know there are more formulas that will get you with 2-4 mph. This one is 1-2 mph off!

[@MrBlackbeauty74]

@@MotorHead18 thank you.

[@MotorHead18]

MrBlackbeauty74 no problem

[@nicks86gt1]

Did this work for you?

[@davidsquibb3021]

Will this work for 3:31 gears?

[@MotorHead18]

No, different gearing, different code.

[@z0sickvett60]

What’s the circumference of a 37? I got 2951 or is that wrong? 37/13.50 R22

[@MotorHead18]

Base it off the real-world measurements with the tire mounted and aired up for best results

[@robertwolak1613]

My 37s on the truck and on the ground measure 35.5”. That circumference is 2832. Is that the same for you? I’m hesitant to put the code in if you have a different number.

[@z0sickvett60]

@@robertwolak1613 I did the 2951 and the check engine still on but might change it to your number see what happens

[@markcash1964]

Motorhead, Do you know what the input code would be for stock 20" wheels and tires? It was an option on my 2018 f250 KR, but I bought it used and it had stock 18's on it. I purchased the stock 20 set installed them and now my speedometer is off. I tried your code and it set the CEL. Thanks in advance for the help.

[@MotorHead18]

Gotcha, I will look up the code in a bit and we will see if it works for you.

[@markcash1964]

@@MotorHead18 Did you have any luck?

[@MotorHead18]

@@markcash1964 shoot. Remind me later today if I don’t get back to you.

[@MotorHead18]

@@markcash1964 0163-0A47-7166

[@MotorHead18]

That is with my 3.55 gears.

[@yummytummybbq8778]

So you didn't run into issues with pulling the TCM code P1635?

[@MotorHead18]

Not at all.

[@yummytummybbq8778]

@@MotorHead18 well that's cool. I had to end up setting the largest factory preset tire size in order to not pull the code with my 35's. Haven't taken the truck (2017) on the highway yet but no code and it's dead on at 40 so fingers crossed.

[@MotorHead18]

@@yummytummybbq8778 Using my formula!?

[@yummytummybbq8778]

@@MotorHead18 I used the forscan spread sheet but I'll give yours a try tomorrow. I was thinking yours was for 37s. I'll let you know how it turns out.

[@MotorHead18]

@@yummytummybbq8778 Yup, 37s.

[@MrKfcflores]

Has anybody tried this with success on 2020 6.7 with 37s?

[@MotorHead18]

Not sure 🤔

[@shaunmoore1991]

If you’re gonna be so cool you gotta wear shades in the video...... at least wipe the smudges off the lenses.

[@MotorHead18]

shaun moore hahaha yeeeee

[@21armyn]

will this work on a 2020 f250 powerstroke?

[@MotorHead18]

There is a separate worksheet for 2020+

[@21armyn]

@@MotorHead18 yes but nothing on the calibration yet.. i think it will throw a CEL

[@MotorHead18]

@@21armyn gotcha