taco meter not working

[despo]

my dads vn taco meter keeps jumping around and wondering if this is a normal issue and what i should be checking to solve the issue cheers

[Afterlight]

v6 or v8? aftermarket?
Umm...is the car being affected? back firing? if its a six, coilpacks? or the tacho is broken...More info?

[despo]

v8 and it has no effect on the cars performance and if its just broken is it easy to fix

[TVR-190]

burrito's are better, have you tried spicy sauce on the circuit board contacts. possibly a dry cheese problem.


translated

tacho, not taco, have you tried having a look at the contacts on the circuit board. its likely a dry solder issue