TROUBLESHOOTING HOME
The oil pressure gauge is a meter that reads resistance to ground based on input from the sender.  NVU oil pressure gauges and sender are 240-33 regardless of pressure range. 240=0 PSI


OIL PRESSURE GAUGE DOES NOT READ PRESSURE

OIL PRESSURE GAUGE IS INACCURATE

OIL PRESSURE GAUGE READS HIGH WHEN FIRST STARTED AND LOW WHEN HOT


GAUGE PEGS HIGH WHEN IGNITION IS TURNED ON