Tdi Oil Pressure Testing

[alan_131]

Hi. I have a recently acquired late '99 TDI 110 Ghia. I suspect oil pressure is down, (noisy & oil warning light flashes on start up). Oil temp display is always --.- ; there's no sender and looks like there never has been (anybody know if this normal?). I'd like to have a simple way to monitor the pressure temporarily, and I'm wondering if replacing the pressure switch in the filter housing with a combined pressure switch/sender and connecting the pressure output to the unused temp. line will work. Anybody any thoughts - or know what input the ecu expects from the oil temp sender - please?

Thanks a lot Alan