Tunerview lite speed display

[JiiJii]

Does tunerview get its speed measurements from ecu or GPS? My cars speedometer shows few km/h too much but tunerview shows the correct speed (checked witf my phones GPS). Speedometer and tunerview show different speed (83 and 80 km/h)

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[Linszter]

Does tunerview get its speed measurements from ecu or GPS? My cars speedometer shows few km/h too much but tunerview shows the correct speed (checked witf my phones GPS). Speedometer and tunerview show different speed (83 and 80 km/h)

From the ECU.

 

[JiiJii]

Thats interesting, the car knows the correct speed but Honda has decited to add about 5% to the speedometer reading.

 

[jlamb30]

Thats interesting, the car knows the correct speed but Honda has decited to add about 5% to the speedometer reading.

It's not uncommon. Motorcycles have even more of a difference between actual speed and displayed speed... some up to 10%. I have a Speedo Healer on my bike to adjust the display to actual speed.

 

[jlamb30]

Could you imagine the speeding citation lawsuits against auto manufacturers if the speedo read under the actual speed? That's why they display over your actual speed.

 

[Linszter]

Thats interesting, the car knows the correct speed but Honda has decited to add about 5% to the speedometer reading.

There is a Speed Offset option in TunerView Setup menu.

 

[CAPTS]

There is a Speed Offset option in TunerView Setup menu.

can we have that option in v2 please

 

[TypeX]

Thats interesting, the car knows the correct speed but Honda has decited to add about 5% to the speedometer reading.

in some cases when you upgrade or downgrade wheel size honda tells u to connect to IHDS unit to tell the car whats on it so maybe thats where the ecu is pulling the data.

 

[CAPTS]

6% is about right matches with speedo on the correction.

 

[JiiJii]

I'd like the speedo to show the correct speed, I drive the speed just under speed cameras settings to get tickets.

 

[Mcclaughry95]

I'd like the speedo to show the correct speed, I drive the speed just under speed cameras settings to get tickets.

Then you would want it to read like it is to not get a ticket. Or we can talk about tire pressure, tread depth and wind error that will change your speed. And cause tickets if the manufacturer made it accurate to stock tires and no margin for error.

 

[sacklzement]

On my car:

200 km/h ECU speed is 195 km/h GPS speed

124 mph ECU speed is 121 mph GPS speed

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