Speedometer still off after dealer programmed it.
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FTE Chapter Leader
Joined: May 2006
Posts: 11,273
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From: North Dakota
Speedometer still off after dealer programmed it.
They changed my tire size to match my 315s and it still reads the same as it did before they did anything. Can I do it myself so it's not reading 65 when I'm running 68?
Lead Driver
Joined: Nov 2012
Posts: 8,304
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From: Salem, VA
Use a GPS. My 79 Datsun had NO gauges in it so I bought a $75 Garmin and used the speedometer on it 
Had it up to 95 twice (once on accident, long story) and it was perfectly accurate. Had someone else driving next to me most of the time and it was never off.
Had it up to 95 twice (once on accident, long story) and it was perfectly accurate. Had someone else driving next to me most of the time and it was never off.
Post Fiend
Joined: Feb 2011
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From: Ft. Lauderdale, FL
Unfortunately, the parameters in our Ex's won't let you get to your size tires.
Lead Driver
Joined: Nov 2012
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From: Salem, VA
Just sayin 
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FTE Chapter Leader
Joined: May 2006
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From: North Dakota
Got the speedo app on my iPhone, used it regularly in my old van because I never hooked the speedo back up after I converted it to 4 wheel drive.
I just like the speedo to read right, so the odometer reads right too.
I just like the speedo to read right, so the odometer reads right too.
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AutoEnginuity
Oh yeah, you were looking for cheap fix.
Seems like TD has one of those. Just a hop, skip, and a jump away.
Oh yeah, you were looking for cheap fix.
Seems like TD has one of those. Just a hop, skip, and a jump away.
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Joined: Jul 2010
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From: Media PA
I too have a speedo thats off due to taller tires, I also use a GPS for accurate speed readings. I drive too slow to worry too much about tickets. 
I am OK with this setup and the odometer difference shouldn't be a big deal, I try to stay ahead on oil changes and such.
I also have an SCT X3 tuner from 5 Star, I haven't rooted around in it much, I just load tunes and go. I don't know if it has the ability to calibrate the speedo on a gasser, I'll have to give Mike at 5 Star a call.
I am OK with this setup and the odometer difference shouldn't be a big deal, I try to stay ahead on oil changes and such. I also have an SCT X3 tuner from 5 Star, I haven't rooted around in it much, I just load tunes and go. I don't know if it has the ability to calibrate the speedo on a gasser, I'll have to give Mike at 5 Star a call.
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