1G Factory oil pressure gauge not reading

[Rooster]

My oil pressure gauge quit on me after the car sat for a while. Replaced the sending unit with an OEM sending unit from mitsu also rewired the connector. Still not reading. Anything else i can check? I know the car has oil pressure its just not reading on the gauge. Pictures below.

 

[1990TSIAWDTALON]

I would bet dollars to donuts that you have a break in that wire somewhere else. Not a fun task but chase that wire to the firewall and make sure it isn't chewed into two by a rodent or something.

 

[Kryndon]

The unit you pictured and replaced is the oil pressure switch, which triggers the low/no oil dummy light. The bigger unit is the actual oil pressure gauge, which feeds a signal to the needle on the dash. The one to the right (not seen in the picture).

 

[Rooster]

The unit you pictured and replaced is the oil pressure switch, which triggers the low/no oil dummy light. The bigger unit is the actual oil pressure gauge, which feeds a signal to the needle on the dash. The one to the right (not seen in the picture).

The unit you pictured and replaced is the oil pressure switch, which triggers the low/no oil dummy light. The bigger unit is the actual oil pressure gauge, which feeds a signal to the needle on the dash. The one to the right (not seen in the picture).

Where is it located on here?

 

[zedicus]

usually the sender wire is broken right by the sender. something about being covered in oil and 4 inches off the pavement makes them fragile...
you are looking for the wire off the middle of this thing.
https://stmtuned.com/products/oem-mitsubishi-dsm-oil-pressure-sending-unit
it is just over about 4 inch from your pic.

 

[Rooster]

usually the sender wire is broken right by the sender. something about being covered in oil and 4 inches off the pavement makes them fragile...
you are looking for the wire off the middle of this thing.
https://stmtuned.com/products/oem-mitsubishi-dsm-oil-pressure-sending-unit
it is just over about 4 inch from your pic.

In the picture there is a broken wire. But it doesn't appear to be able to reach anything

 

[zedicus]

you have a front facing oil filter housing. did you know that???

the most common thing to do is swap that switch for a sender and then hook the cut wire to the sender. you will have the pressure gauge but the idiot light will be on. how involved do you want to get here?

 

[Rooster]

you have a front facing oil filter housing. did you know that???

Ive got the car on the lift now i see nothing of the sorts...

 

[Rooster]

4 inches in either direction i dont see a sending unit

 

[zedicus]

here is what you should see.
https://cdn11.bigcommerce.com/s-26d...s/406/4140/P1220314__21777.1510868743.jpg?c=2

here is what you have
https://www.dsmtuners.com/attachments/2ezqzxx-jpg.433276/

 

[Rooster]

here is what you should see.
https://cdn11.bigcommerce.com/s-26d...s/406/4140/P1220314__21777.1510868743.jpg?c=2

here is what you have
https://www.dsmtuners.com/attachments/2ezqzxx-jpg.433276/

you have a front facing oil filter housing. did you know that???

the most common thing to do is swap that switch for a sender and then hook the cut wire to the sender. you will have the pressure gauge but the idiot light will be on. how involved do you want to get here?

I dont mind putting in a little extra work. I swear before i parked this thing the gauge worked... are you saying this OFH isnt factory for this 1g?

 

[zedicus]

correct, it is not a factory item on that car.

so decide if you want both the idiot light, and the gauge. you can do this.
https://www.dsmtuners.com/attachments/84e5ec22-f32b-45e4-91cd-7ba44ec7de7d-jpg.327421/

or you could just run the sensor and ground out the idiot light, but with out doing some extra work you do not get both.

you could put a 'T' fitting on the bottom but it would hang pretty low.

 

[Rooster]

correct, it is not a factory item on that car.

so decide if you want both the idiot light, and the gauge. you can do this.
https://www.dsmtuners.com/attachments/84e5ec22-f32b-45e4-91cd-7ba44ec7de7d-jpg.327421/

or you could just run the sensor and ground out the idiot light, but with out doing some extra work you do not get both.

you could put a 'T' fitting on the bottom but it would hang pretty low.

I see, thank you. Ill have to dig around and see if i have a sending unit for this car somewhere. Do you know if any other similar model year sending units are compatible? Theres some 2g 1.8s and 2g 420as at a junkyard near me

 

[zedicus]

just take that pic from stmtuned with you and find one that looks like it. a chrysler, DSM, hyundai, kia, and a ton of stuff from 1990 to 200x all use that same sender.

 

[Rooster]

just take that pic from stmtuned with you and find one that looks like it. a chrysler, DSM, hyundai, kia, and a ton of stuff from 1990 to 200x all use that same sender.

Nice, i appreciate your help man.

 

[1990TSIAWDTALON]

The FFOFH only has ONE accessory outlet but some people have made a 2nd place where the "E" hole is at. That is what I show in the 2nd picture. The casting there is pretty dam thin so IDK if I'd mod mine or not.
I would run that ONE outlet to a gang of ports remotely and not hang anything off of the OFH itself. They will and do break off.
Just a suggestion.
Pops

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[Rooster]

The FFOFH only has ONE accessory outlet but some people have made a 2nd place where the "E" hole is at. That is what I show in the 2nd picture. The casting there is pretty dam thin so IDK if I'd mod mine or not.
I would run that ONE outlet to a gang of ports remotely and not hang anything off of the OFH itself. They will and do break off.
Just a suggestion.
Pops

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I appreciate your insight a lot. Glad to see this forum still filled with great people.