Jimmy Young
Well-known member
- First Name
- James
- Joined
- Oct 24, 2021
- Threads
- 8
- Messages
- 116
- Reaction score
- 105
- Location
- Orange County
- Vehicles
- 2021 Ford-F150 lariat
Ok here is what I did. Went into Bdycm module, tires. Changed back to original 2547. Cleared code DTC no fault. Then went back in and started going up a little at a time. 2674 is the highest value I can reach and relearn the PCM with no fault on the DTC.?ok I think I understand. I’ll try this out step by step. I understand what you are saying though that this size tire was never meant to be. So I will be increasing it not decreasing it?
When I change the tire size I did not do it by changing the value. I did the easy way by tire circumference MM. stock was 2547 Now I have it at 2750 and it’s dead on with GPS.
So do I need to change this back first then start increasing by 16” from there?
And what is the down side by leaving the DTC with a fault? Will it lead to other issues?
Thanks SilverPigeon
It’s about 75mm lower then what had me perfect but if I’m only 1-2mph off and no fault I’m good with that.
I’ll test the speed later with GPS and see what it says.
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