Fordup
Well-Known Member
- First Name
- Ed
- Joined
- Jun 3, 2022
- Threads
- 18
- Messages
- 1,942
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- 9,600
- Location
- NY
- Website
- youtube.com
- Vehicle(s)
- 2022 Black Lariat Crew , 1966 Chevrolet Biscayne
- Occupation
- Retired YouTube Creator
Thanks for the information. I sent a copy to ScanGauge to see if there is a way to display it. It sure would be nice to have available..That is incorrect, the shop manual shows a pressure sensor. The PCM actually regulates the engine oil pressure using the oil pressure sensor as feedback. I have seen the actual oil pressure readout in PSI using Forscan.
Some additional info that I found on the subject.
Here is an excerpt from the shop manual:
"Engine Oil Pressure Sensor
The engine oil pressure sensor is hardwired to the PCM through voltage reference (VREF), signal and return circuits. The PCM provides the sensor voltage supply on the VREF circuit and monitors the change in voltage through the signal and return circuits as the engine oil pressure changes."
This indicates the way the PCM measures the oil pressure.
Forscan screenshot showing Oil PSI (EOP):
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Wiring diagram showing pressure sensor:
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