Engine base oil pressure reading
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Laughing Gas
Joined: Dec 2017
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Engine base oil pressure reading
I wonder how important this is. I understand that the cluster is only showing a yes/no reading. What about tapping into the voltage, and we at least having a range (low/high) so we can correspond them to rough PSI. Here's what I found:
"Base engine oil specifications are as follows: The minimum engine oil pressure specifications are 82.7 kPa (12 psi) at 700 rpm, 165.5 kPa (24 psi) at 1,200 rpm and 310.3 kPa (45 psi) at 1,800 rpm with the engine at operating temperature."
So if we know the min/max voltage, and assume somewhat linear scale, we can figure out the PSI. If not, someone with both voltage values and a mechanical pressure gauge can measure and record in a spreadsheet and and we can figure out the equation for that.
If the voltage value is not available, maybe we can tap into that connector wiring to retrieve the value versus installing a separate sensor, although install a separate sensor is not a big deal anyway, if the value is important.
"Base engine oil specifications are as follows: The minimum engine oil pressure specifications are 82.7 kPa (12 psi) at 700 rpm, 165.5 kPa (24 psi) at 1,200 rpm and 310.3 kPa (45 psi) at 1,800 rpm with the engine at operating temperature."
So if we know the min/max voltage, and assume somewhat linear scale, we can figure out the PSI. If not, someone with both voltage values and a mechanical pressure gauge can measure and record in a spreadsheet and and we can figure out the equation for that.
If the voltage value is not available, maybe we can tap into that connector wiring to retrieve the value versus installing a separate sensor, although install a separate sensor is not a big deal anyway, if the value is important.
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