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Re: Need help fast! Can I use universal o2 sensor?
Posted by saabsince 93b (# 972) (more from saabsince 93b) on Sat, 9 Jul 2011 10:45:32
In Reply to: Need help fast! Can I use universal o2 sensor?, JordanP, Sat, 9 Jul 2011 10:23:57
you can use universal. Normal [non-wideband]O2 sensors are pretty much the same and put out 0 to 1 volt.

wiring differences are simple.

Single wire has one wire to sensor. The case is ground.

2 wire have one line to heater, other to sensor. Shell is ground. Use Ohm meter to figure out which is heater, or just follow color code. This is the type used OEM in Saab.

3 wire has one to sensor, one to heater, black wire is ground
again use ohmmeter to check it out.

5 wire is WIDEBAND costs $100 and is a totally different thing.....and not used in the 95

hope this helps.
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