SPEEDOMETER OPERATES BUT DOES NOT READ SPEED CORRECTLY
For your speedometer to operate properly it needs to be calibrated using the sequence in the instruction booklet. If you need the instructions click the link HERE.
Has the speedometer been calibrated? YES- re-calibrate using a measured mile and check that the speedometer is operating at low speeds. If it is not operating at low speeds click HERE
Does the speedometer pointer move while stationary and revving the engine? YES: there may be tachometer signal noise on the sender wire. Check that the speed signal wire is not in close proximity to the ignition source or tach wire. The sensitvity can also be changed to filter out additional noise if needed. SEE THIS VIDEO TO CHANGE INPUT SENSITVITY