92 Classic 305 E TBI

[classic car]

Is the Oil Pressure Switch and the Oil Sending Unit the same? It is not getting fuel, replaced the fuel pump and the fuel filter, and checked the fuel relays also. Will try to replace the Oil pressure switch, it has 231,000
miles on it.
Thanks

[silicon212]

If your car only has an idiot light for any oil pressure warnings, then you only have the switch. It will have three leads hooked onto it. An oil pressure sending unit looks like a small can and has a single wire connecting it. If your car has gauges, then you might (WILL have in the case of EFI) have both a switch and a sending unit. Often, in that case, they are tee'd together. The common location for the switch/sending unit is below and to the left (driver's side, to your right) of the distributor. They can also be located in different areas, such as above the oil filter, or above and to the right (passenger side, to your left) of the timing cover.

On my '88, the switch is on the top under the distributor, and the sending unit is on the block above the oil filter.

[classic car]

Ok, Thank You, I will look in those areas, thanks for the help.

Originally Posted by silicon212

If your car only has an idiot light for any oil pressure warnings, then you only have the switch. It will have three leads hooked onto it. An oil pressure sending unit looks like a small can and has a single wire connecting it. If your car has gauges, then you might (WILL have in the case of EFI) have both a switch and a sending unit. Often, in that case, they are tee'd together. The common location for the switch/sending unit is below and to the left (driver's side, to your right) of the distributor. They can also be located in different areas, such as above the oil filter, or above and to the right (passenger side, to your left) of the timing cover.

On my '88, the switch is on the top under the distributor, and the sending unit is on the block above the oil filter.