Rovergauge shows wrong mph speed
Discussion
Hi,
the rovergauge software works fine, there's just one thing that's strange:
When the car stands still, rovergauge shows 0 mph, as it should. But when I'm driving, it always shows 34 or 35 mph, regardless the real speed.
Do you have any idea what could be the reason for this behaviour? I don't think that's normal, is it?
Regards
Claus
the rovergauge software works fine, there's just one thing that's strange:
When the car stands still, rovergauge shows 0 mph, as it should. But when I'm driving, it always shows 34 or 35 mph, regardless the real speed.
Do you have any idea what could be the reason for this behaviour? I don't think that's normal, is it?
Regards
Claus
AFAIK this is normal behaviour!!!
The speed sensor sends a signal to the ECU to tell it if the car is stationary or moving and fuelling is adjusted accordingly. I believe 3 mph is the trigger point.
There is a box behind the dashboard that converts the speed sensor signal to the speedometer to show the cars actual speed (within a reasonable margin!) and can give problems but if your TVR is operating fine then I would ignore what Rovergauge is showing.
HTH
The speed sensor sends a signal to the ECU to tell it if the car is stationary or moving and fuelling is adjusted accordingly. I believe 3 mph is the trigger point.
There is a box behind the dashboard that converts the speed sensor signal to the speedometer to show the cars actual speed (within a reasonable margin!) and can give problems but if your TVR is operating fine then I would ignore what Rovergauge is showing.
HTH
That is normal.
The speed sender signal going to the speedo is not compatible with the ECU so TVR made a box to convert the signal. Rather than try and make the info scale across the speed range they just tell the ECU we are moving (35mph) or stopped which is actually all the ECU wanted to know.
Steve
The speed sender signal going to the speedo is not compatible with the ECU so TVR made a box to convert the signal. Rather than try and make the info scale across the speed range they just tell the ECU we are moving (35mph) or stopped which is actually all the ECU wanted to know.
Steve
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