986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Coolant temperature sensor connector 2000 to 2002

rennpart · 06-19-2023, 07:40 PM

Just reporting my findings.

I edited my post.

If you "tap" a 2 wire sensor on an original 4 wire DME/instrument cluster car the instrument cluster temps won't display properly (reads very low)- the additional 2 wires on the 4 wire sensor output different ohms for the dash gauge.

I ended up having to use the 4 wire sensor and run 2 new wires. One is a ground, and the other has to go to the black XR2 connector in the trunk. I ran the ground to the trunk as well and tapped into the original ground source just to be safe.

--Aaron

06-19-2023, 07:40 PM	#15
rennpart Registered User Join Date: Jan 2017 Location: Summerfield, NC Posts: 23	Just reporting my findings. I edited my post. If you "tap" a 2 wire sensor on an original 4 wire DME/instrument cluster car the instrument cluster temps won't display properly (reads very low)- the additional 2 wires on the 4 wire sensor output different ohms for the dash gauge. I ended up having to use the 4 wire sensor and run 2 new wires. One is a ground, and the other has to go to the black XR2 connector in the trunk. I ran the ground to the trunk as well and tapped into the original ground source just to be safe. --Aaron Last edited by rennpart; 06-19-2023 at 07:42 PM.