To troubleshoot your MPVI Pro Analog inputs to rule out a hardware issue follow the directions below:
|1.||Insert the raw voltage PID into the #1 slot in your table display.|
|2.||Connect a 3-5" long piece of 16-20 gauge wire to the #1 port on your MPVI Pro.|
|3.||Connect a 3-5" long piece of 16-20 gauge wire to the #5 (ground) port on your MPVI Pro.|
|4.||Connect the #1 piece to the positive terminal of a AA battery and the #5 piece to the negative terminal on the AA battery.|
|5.||Connect your interface to your vehicle and begin logging.|
Without the AA battery connected the voltage will likely hover around 1.34-1.37 Volts. This is perfectly normal.
New AA batteries will put out approximately 1.5V - 1.6V, so if your interface is reading this voltage perfectly in the scanner then you likely have an issue somewhere else. It may be a custom PID that is incorrect or your wideband controller hasn't been properly configured.