techo meter

[Samthapa]

Hello,,,

hey man https://drive.google.com/file/d/1XtVxsHmgNBxWV1ET0CpmIppf0xtoioZN/view yout speedo meter how can i use it as techo meter any command like example f_gas_f_dspeedo or f_dspeedo_f_gas i try them it just show 999 or all digits at same place cant understand help please thanks

[Samthapa]

https://www.youtube.com/watch?v=YfMdTw-dR_c&ab_channel=MahekThapa
as you can see here car is slow it shows speed ok but when jump even slow car it shows 999 speed this even works as tachometer
that is what i want but only tacho or rpm and speed should not work as tacho or rpm