You're not accounting for "squish". Try subtracting 3% of 2741 to get a more reasonable "loaded" circumference. When I do this, I get a value of 2741 - 82 = 2659 mm.
Unless you compensate for squish, your PCM will think each revolution of your wheels moves further than you are actually traveling. That equates to to a higher speed than you are actually doing. Try it with 2659. If you're still indicating faster than you're actually moving, reduce it still more.
Oh, and Lars was correct too. Make sure your Gear Ratio value is correct when you do this.
- Jack
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2024 F150 Platinum SCrew 3.5L PowerBoost FX4, Peragon Tonneau Cover, LineX Bed, 35% Window Tint on All Sides and Rear, Full Nose Paint Protection Film, Husky Mud Guards, Lasfit Floor Liners, VIOFO Dash Cam
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