hi im having a problem with my cluster. my rpm gauge don't work. it was working fine the other day. must be something i did. what problems might it be or what should i check to see will it fix it. i have a 95 hatchback si

 

what did you do to the car latley, also check all your fuses under

 

well the mph guage works fine.

 

well its not a fuse than, ummmm check your connector if you have a friend with a 92-95 civic swap cluster and see if the rpm gauge works in there car it could be your cluster

 

go to the pin on your cluster and test it for AC while the engine is running, the 12v ignition power for the tach gauge, and the ground for the gauge. a tach is a simple 3 input gauge. if everything is straight, then your gauge died.