Oil Pressure question
Thread Starter
Your Powder Coater
Joined: Mar 2004
Posts: 4,463
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From: Girard, Ohio
Originally Posted by PDiggityDogg
the oem unit doesnt work that way...it only senses an adequit pressure and keeps the light from turning on.
You need an aftermarket sensor/sender
You need an aftermarket sensor/sender
Originally Posted by westcoaststyle
I don't think that the OEM sending unit works that way. It just senses if there is or is not pressure. The aftermarket sending unit actually reads the pressure and sends that to the gauge.
Thats what i needed to kno! Thanks guys!
Hybrid Forum Moderator
Joined: Mar 2000
Posts: 2,363
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From: Southwestern PA
On my SR20DET, I was going to T off the factory oil pressure sensor for the greddy sending unit for my gauge. I did some research though and it looks like the stock 1-wire oil pressure sensor is just basically an on/off switch for the dash dummy light. If it sees <3 psi (the number I found), it grounds out and the dummy light on the dash turns on. Since I'm going have an actual gauge (mine are peak/hold/warning gauges too) I figured the factory dummy light is useless anyway and I just replaced the OE sensor with the Greddy one.
Even on a VTEC car, the VTEC solenoid on the head has it's own dedicated oil pressure sensor, so the stock sensor on the back of the block is probably the same style/dummy light sensor.
Even on a VTEC car, the VTEC solenoid on the head has it's own dedicated oil pressure sensor, so the stock sensor on the back of the block is probably the same style/dummy light sensor.
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'06 Subaru Legacy Spec B - Stock, for now
'98 Civic EX - CTR headlights and grill, Kosei K1's, for sale
'90 240SX - SR20DET that will never get installed, project car.
Andy - Reinstated Hybrid Forum Moderator
'06 Subaru Legacy Spec B - Stock, for now
'98 Civic EX - CTR headlights and grill, Kosei K1's, for sale
'90 240SX - SR20DET that will never get installed, project car.