My tacho reads around 900 rpm with key out and ignition switch at off.
When i turn to battery on pre ignition point it jumps to around 1400 rpm.
When engine idles it reads around 2100 rpm.
Are these tachos adjustable in anyway? Is it pulses or voltage driven?
Was possibly interfered with recently prior to car purchase when the speed had to be changed to kmh from mph though can't swear on it.
When i turn to battery on pre ignition point it jumps to around 1400 rpm.
When engine idles it reads around 2100 rpm.
Are these tachos adjustable in anyway? Is it pulses or voltage driven?
Was possibly interfered with recently prior to car purchase when the speed had to be changed to kmh from mph though can't swear on it.