Oil pressure sender

[dixiepc]

I need an oil pressure sender without the switch function that will work with a 1992 gauge. Is that something that exist?

 

[ak diesel driver]

Why does the switch matter?

 

[alex1234]

you can use the later OP sensor for 96-99
it has not the switch, oil pressure sender only

 

[alex1234]

Sorry, later model OP has switch always.....my mistake
it is use with ECM control for lift pump

 

[dixiepc]

I'm putting in a Cummins with a mechanical lift pump and just want to get rid of as much stuff that might fail as I can.

 

[MrMarty51]

Use the 6.5 switched sender, just clip the wire(s) for the switch.
Even if the switch side fails, the sender side will continue on in its duties.

 

[dixiepc]

I haven't had time to look into it but I was wondering if the 88-92 GMT400's with a 6.2 would have a sender only.

 

[dixiepc]

Maybe a square body sender would send the right signal.

 

[dixiepc]

Like this.

 

[MrMarty51]

But why mess with the terminal end when it would be totally unnecessary ?

 

[dixiepc]

That's what I'll probably wind up doing. I was just looking for a cleaner way.

 

[Will L.]

The reason the newer ones burn out more frequently is the excessive load from the lift pump on it. Adding a relay eliminates the problem. If you are just using it for the pressure- it will last a really long time. Being smaller and more readily available- Just stick with it imo.

 

[dixiepc]

Makes sense.

 

[alex1234]

if you need OP sensor only....you must go over aftermarket spare part sensor


this is my part spare for fuel pressure sensor

it has stainless steel housing .... you can choise bolt tread, pressure range or Ohm range

whatever you need, it doesn't cost a fortune
when bought it, 3-4 years ago about $18/20 from china

 

[dixiepc]

Do how do you know what ohm range?

 

[alex1234]

you must measure your old oil pressure sender....
maybe is in volt range for pressure to the gauge

you must measure your old sender

 

[alex1234]

you must measure your old oil pressure sender if it is in good shape....

but if you don't know how to measure Ohm ... I think it's better for you get help from someone. also to not short the sensor when you connect it.

OIL PRESSURE GAGE
The engine oil pressure is displayed by the Oil
Pressure Gage. The pointer of the Gage is moved by two
coils, and its operation is similar to that of the Fuel Gage.
The Oil Pressure Sender is connected to the junction of
the two coils. It has low resistance when the oil pressure is
low, and high ohms resistance when the oil pressure is
high. This changing resistance changes the current flow
through the coils. The magnetic fields of the coils move the
pointer from low to high.

connect the sensor to an air compressor, low pressure line with pressure tap and gauge and increase the pressure da 0 psi to 80psi meanwhile you measure with a multimeter the output signal from sender to gauge ....use a battery to power the sensor, it has 3 wire positive inlet, positive outlet, and signal to the gauge, negative pole is the sensor mass...

see pdf Attachment

 

[dixiepc]

Thanks for the diagram. That helps me understand how it works.