Helping with a car that was bought with a kph speedo. So...
How do you swap the speedo from kph/kilometers to mph/miles?
I'm presuming that the speed and distance are stored in the engine ecu, displayed from PID's (such as with rpm, fuel level, coolant temp, etc). So if the speedo is replaced, does the pcm sense this? Or is there a switch that has to be set from metric to english? Or does the entire pcm have to be replaced with an english unit?
Thanks!