Scan Gauge Correction Factors

[tderonne]

I'm curious what ScanGauge users are using for both the speed and fuel rate correction factors. I just swapped to a 4.88 axle, so my speed correction will be different, but I can take that out when comparing to others.

So.

I've currently settled on using a 5% correction for fuel rate. Each fillup varies by a couple gallons. I was very close on a two fillups, but then tried a lower setting after a fillup was kind of low. Should have left it alone. I only have 5 fillups to judge by though. Hadn't really figured it all out on our first trip.

And for the speed, as I mentioned, mine is off an extra 10% of so for my axle swap, but it was interesting to play with. I was using ScanGauge distance traveled vs. my odometer and road mile markers, as well as using the ScanGauge speed vs. GPS speed. I settled on using a 13% correction. Just about nails the miles traveled dead on (this is tough, the engine processor only knows speed, it integrates for distance. It can be wrong with a lot of starts and stops, tough to integrate near zero speed) and the speed is just a little shy of my GPS, a bit less than 1 MPH at 60. My odometer is off by almost exactly 12% though. A 12% correction on the ScanGuage wasn't enough. 14% gave the best speed coorelation, but I'm really trying to dial the mileage in, so the distance traveled was more important to me.

What are you using?

[tderonne]

I'm curious what ScanGauge users are using for both the speed and fuel rate correction factors. I just swapped to a 4.88 axle, so my speed correction will be different, but I can take that out when comparing to others.

So.

I've currently settled on using a 5% correction for fuel rate. Each fillup varies by a couple gallons. I was very close on a two fillups, but then tried a lower setting after a fillup was kind of low. Should have left it alone. I only have 5 fillups to judge by though. Hadn't really figured it all out on our first trip.

And for the speed, as I mentioned, mine is off an extra 10% of so for my axle swap, but it was interesting to play with. I was using ScanGauge distance traveled vs. my odometer and road mile markers, as well as using the ScanGauge speed vs. GPS speed. I settled on using a 13% correction. Just about nails the miles traveled dead on (this is tough, the engine processor only knows speed, it integrates for distance. It can be wrong with a lot of starts and stops, tough to integrate near zero speed) and the speed is just a little shy of my GPS, a bit less than 1 MPH at 60. My odometer is off by almost exactly 12% though. A 12% correction on the ScanGuage wasn't enough. 14% gave the best speed coorelation, but I'm really trying to dial the mileage in, so the distance traveled was more important to me.

What are you using?