Easy (and affordable) way to recalibrate speedometer?

[Modn]

Received the Super Chip programmer today. Everything installed good after checking for updates, auto start off, fog lights on, double horn thing off, got to programming the new tires 34.4" and didn't do a thing, was still 4mph off. Called them, to make a long story shorter, it wouldn't correct it any all the way up to 36.75" tires. Got to 37" and the speedo was spot on, warnings for advance trac (I don't have it) came on, light for loosing traction came on and one light I have no idea what it is and I couldn't set cruise control. Unhooked the battery for 15 minutes and still the same. This is just my luck!! We hung up the phone both confused. I downloaded the programmer with an update they sent so they can see what I have and I will talk to them tomorrow. Jury is still out on this so far!! Will post good news tomorrow night hopefully.

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[Vin]

Received the Super Chip programmer today. Everything installed good after checking for updates, auto start off, fog lights on, double horn thing off, got to programming the new tires 34.4" and didn't do a thing, was still 4mph off. Called them, to make a long story shorter, it wouldn't correct it any all the way up to 36.75" tires. Got to 37" and the speedo was spot on, warnings for advance trac (I don't have it) came on, light for loosing traction came on and one light I have no idea what it is and I couldn't set cruise control. Unhooked the battery for 15 minutes and still the same. This is just my luck!! We hung up the phone both confused. I downloaded the programmer with an update they sent so they can see what I have and I will talk to them tomorrow. Jury is still out on this so far!! Will post good news tomorrow night hopefully.

Let us know. I have one on the way now that the software is "compatible with the 2022 without error codes" according to their tech support. It sounds like that may not be the case after reading your post.

 

[Modn]

So just got off the phone with Superchips/Holley after 30+ minutes on hold. They did take a reading of my programmer which they said hopefully shows where the error is with it working with my truck. Said they should be calling me back in 3-4 days. Boy oh Boy.........why does this s**t always happen to me? So I'm fuming as I spend $250ish on something that really does nothing, then having to be on eternal hold in 2 days to be told they Should get back to me in 3-4 days THEN hopefully it will be good! Grrrrrr Not being a jerk to anyone there as it isn't their fault, but man, it's extremely hard!

 

[Modn]

Let us know. I have one on the way now that the software is "compatible with the 2022 without error codes" according to their tech support. It sounds like that may not be the case after reading your post.

Give it a whirl and report back here. By the looks of it, so far it's a 50/50 shot. Hopefully you end up on the good side. No doubt they have tested it and all......maybe it's just my rig being trouble.

 

[wz00r2]

Keep us posted on how this plays out! I have a 2022 that I just installed 295/65R20s on and I need to fix the speedo.

 

[HammaMan]

For those w/ forscan who don't want to pay $11 or so for the year, when you trial runs out, you can go through the process of requesting another 2 months free and they'll give it to you.

 

[Modn]

So just got off the phone with Superchips/Holley after 30+ minutes on hold. They did take a reading of my programmer which they said hopefully shows where the error is with it working with my truck. Said they should be calling me back in 3-4 days. Boy oh Boy.........why does this s**t always happen to me? So I'm fuming as I spend $250ish on something that really does nothing, then having to be on eternal hold in 2 days to be told they Should get back to me in 3-4 days THEN hopefully it will be good! Grrrrrr Not being a jerk to anyone there as it isn't their fault, but man, it's extremely hard!

(Rant On) So here we are Friday......called and was on hold for another 35 minutes. Told me the engineers still have it so there is nothing they can do for a fix, and have a nice weekend, we will call you when they have a fix. I want to blow through the roof as c'mon, you have my money already and here I am waiting on you to fix YOUR crap! Not impressed even if they do get it fixed.....I would bet money it will never be fixed. (Rant off).

 

[Vin]

So I got my Superchips Flashcal today and everything went smoothly. I only changed the fog lights/brights setting and corrected the tire size. I had to play with the tire size to get the speedo to match the gps at 60 mph. Even though I have 34.5" tires the setting on the flashcal that worked was 33.5". Which was nice because any tire size over over 33.75" throws a DTC code although no Check Engine Light or any other idiot light was indicated on the dash. After I changed the tire size setting back below 33.75", I cleared the DTC code with the Flashcal and everything is working great..

 

[Modn]

So I got my Superchips Flashcal today and everything went smoothly. I only changed the fog lights/brights setting and corrected the tire size. I had to play with the tire size to get the speedo to match the gps at 60 mph. Even though I have 34.5" tires the setting on the flashcal that worked was 33.5". Which was nice because any tire size over over 33.75" throws a DTC code although no Check Engine Light or any other idiot light was indicated on the dash. After I changed the tire size setting back below 33.75", I cleared the DTC code with the Flashcal and everything is working great..

Awesome!! Wish I had the same luck! When you changed the tire size and it accepts it does it still read that size when you go back in? Mine always reverts back to 29.5 if I remember right. I can change mine in increments up to 36.75 and it makes no difference at all. Once I hit 37" it changes it to perfect actually, but my dash warning lights and crap come on and no cruise.

 

[Modn]

So I got my Superchips Flashcal today and everything went smoothly. I only changed the fog lights/brights setting and corrected the tire size. I had to play with the tire size to get the speedo to match the gps at 60 mph. Even though I have 34.5" tires the setting on the flashcal that worked was 33.5". Which was nice because any tire size over over 33.75" throws a DTC code although no Check Engine Light or any other idiot light was indicated on the dash. After I changed the tire size setting back below 33.75", I cleared the DTC code with the Flashcal and everything is working great..

So you inspired me after I read your input and after I wrote the message above. Went back out, cleared everything and started again and got the same exact results. I then read your comment again and realized we had the same size tires and you used 33.5" and it worked. Long story short.....I did the same and by God you were exactly right!!! Thank you so much!!! Love these Forums just for this purpose!! With the tech on the phone 4days ago we went to the lowest, like 26" and came up through while he was on the phone. Maybe we missed the magic number of 33.5", but we were all around it for sure as we were on the phone for about an hour and testing my speed with every adjustment. If anyone puts on bigger tires, not so sure this will work, but it worked for me and I'm now happy. I changed all the other settings I wanted and it still works good. Again, thanks for posting your results or I would still be hanging waiting for the engineers to call me back for a fix at some point.

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