Somerset Regal L4-151 2.5L (1985)
2. If the oil pressure gauge reads low all the time, remove the connector from the oil pressure switch/sender.
a.
If the gauge now reads high, the wiring is good. Install a new oil pressure switch/sender.
b.
If the gauge still reads low, locate and repair the short in the TAN/BLK(231) wire between the sender and the cluster.
