Any chance I can use stock oil temp/oil pressure sensor for ms3 input?

[smurfbus]

I can find linear sensors for about 27usd shipped so its not that bad but stock would look kind of well stock.

Pressure transducer or sender, 150 psi, stainless steel, for oil,fuel,air,water | eBay

How about logging or input stock oil pressure for limp mode/kill switch?

[dos531]

I don't believe you can use the stock one.

[smurfbus]

Some people on the tehcnical forum have tried to measure the output but the results vary ALOT. There are some VDO specs though like

The VDO sender is supposed to be 10-180 ohms for a 0-5 BAR gauge. The gauge should read 1 bar at 29.6 ohms and zero bar at 10 ohms

One guy measured his

Oil pressure (indicated gauge psi vs input resistance):
140 psi = 182 ohms
100 psi = 145 ohms
60 psi = 94 ohms
20 psi = 46 ohms
0 psi = 17 ohms

Other guy measured a new sensor

0 bar / 9.4
1 bar / 64.0 ohms
2 bars / 85.3 ohms
3 bars / 112.2 ohms
4 bars / 139.4 ohms
5 bars / 168.9 ohms
6 bars / 178.3 ohms

So it looks like even new one is out of spec if it was VDO? I might be able to measure those myself and that could give enough resolution/accuracy for CTL usage for hot starts.

For oilpressure I found these measurements for 911 sensor (930 could be totally different)

Oil pressure (indicated gauge psi vs input resistance):
140 psi = 182 ohms
100 psi = 145 ohms
60 psi = 94 ohms
20 psi = 46 ohms
0 psi = 17 ohms

So unless I use an adapter for another pressure sensor I need to measure this one too. It would be cool to be able to use the stock one though for more authentic look. I will try to use my 123/TUNE distributor for cam sync anyway (points type output) but if the VR next to it gives too much trouble then a HALL sensor in the air pump housing (I have a bolt in there already but the hole I thought I could use on the housing is in the wrong place so more tinkering, heat shield interference)

[Hams930T]

Wouldn't be hard to plumb a t fitting up there so you could install whatever sensor you want.

Scaling the oem sensor would be the easier path.

[Tippy]

Yep, just use a DMM and put the sensor in different Temps of water and measure output.

Only need 2 points of data.