The RPM normally increases as you push the race pedal in your VW. However, it is possible that the wire for RPM might be broken, causing it to suddenly increase without race.
why doesn't my rpm gauge and temp gauge, fuel gauge not work
The larger the gauge, the smaller the diameter. That makes 22 gauge wire not as thick as 18 gauge wire.
The size of the wire is stated by its gauge under American Wire Gauge. Six gauge wire is size 6 AWG.
Wire gauges are defined in such a way that the lower the gauge, the thicker the wire. So, 8 gauge wire is thicker than 10 gauge wire.
Your engine is not running or your "RPM gauge" is broken.
On my 1966 bus the gas gauge has 3 terminals. +,G and the light. The + is black, G is Grey and the light is the striped wire
The RPM gauge is connected to the same wiring on as all the lights on the dashboard. A faulty RPM gauge can be replaced but requires removing the whole dash from the vehicle.
while driving the rpm gauge work perfect, when start accelerating the rpm can not exceed 3 with interruption in the engine
12 Gauge is thicker then the 20 gauge.
Yes, the smaller gauge number, the larger the wire is.
Yes, you splice a small length of 16 gauge wire to 18 gauge wire for a repair.