xychix Posted July 13, 2015 Share Posted July 13, 2015 I've got a oil pressure sensor attached at the back of the oil pump. The gauge on the dash gives 2 kg/cm2 (15 lb/o ??) Which is lower than the first quarter of the gauge. Gut feeling tells me this is to low. The gauge is powered 13.9 Volts with running enginge and gets 4.8 Volts on the sensor line. A extra ground was added. Does anyone have info on what I should want there? (in volts and in kg/cm2) Quote Link to comment Share on other sites More sharing options...
xychix Posted July 13, 2015 Author Share Posted July 13, 2015 1 Kilogram-force/Square Centimeter (kg/cm²) = 14.223343306791 Psi (Psi) this converts to 30 psi still seems 10 psi to low for me Series III 109 2.25di Quote Link to comment Share on other sites More sharing options...
Snagger Posted July 15, 2015 Share Posted July 15, 2015 With warm oil, you should have 25psi at idle and 55 at mid and high rpm (expect the values to be higher when cold). If you have a Tdi, knock 5-10 psi off those values; the turbo takes a lot of oil flow but the pump is the same. Quote Link to comment Share on other sites More sharing options...
xychix Posted July 15, 2015 Author Share Posted July 15, 2015 so I'm find on 2 km/cm2 == ~30 Psi doesn't rise at all when driving though... Will change oil and filter and hope that helps a bit. Filter might be clogged. Quote Link to comment Share on other sites More sharing options...
xychix Posted July 15, 2015 Author Share Posted July 15, 2015 Could it be that the feedline to the gauge is supposed to be a regulated power? 4.8 to 10V is a total different measure from 4.8 to 13.9..... Quote Link to comment Share on other sites More sharing options...
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