Hello thank for using 2carpros.
It seems you have loose instrument cluster connector, or pin inside connector, or loose rpm gauge lamp.
Remove instrument cluster check its connector visually if it is clean check internal pins if they are not damaged, check for supply voltage(check picture 1 and 2) at pin B1 (grey) then check for ground at pins A2 (black)and A4 (black/white). If they are good check inside lamp contact if it is clean.
Images (Click to enlarge)
Sunday, February 3rd, 2019 AT 5:25 AM