Yes it has 2 speed sensors. On is in the trans. And the other is in the speedometer head.
It does not change the actual speed of a vehicle but changing tire size can affect the accuracy of the speedometer.
Around 1317.30. Travelling an actual route, rather than as the crow flies.
Their signals come from different places in the car. There might be a fault in the pickup or in the cabling or in the actual instrument.
The speedometer in a car runs based off the speed of the transmission. The gears in the transmission spin at a known rate for the speed the vehicle is traveling at. The faster the gears spin the more the speedometer goes up. If a person replaces stock tires with larger tires, then the tires will spin slower, which will cause the speedometer to read at a value that is less than the actual speed.
Tappet,i.e.,Lifters, can be found at a Nissan Dealer. They would be able to tell you the actual size.
Larger tires will make the speedo lower than actual speed.
Yes, it is obvious that if the radius of tire is small than it effect on the speed of the car. Smaller tires will show the speed on the speedometer more than actual.
Check the speed sensor.
A hair over 78 mph (78.125).
You can get a Federally approved form from DMV to record actual mileage and keep with vehicle and just add that mileage the accumulated mileage on the new speedometer
have you replaced the stock tires with bigger tire you need to have speedo recalibrated thru the computer.take it to a technition
Cork and Kerry are neighbouring counties and have a land border, so it will depend on where exactly you are travelling to and from as to the actual distance.