O2 and coolant temp sensor Q. - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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O2 and coolant temp sensor Q.
Posted by Mattias.se (more from Mattias.se) on Sat, 14 Jan 2006 10:17:06
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I get 2 error messsages. P0125, insufficient coolant temp, and P0135 O2 sensor heater circuit malfunction. I was able to measure both O2 sensors. One read 4 Ohms (normal?), the other in the MegaOhm range. (Measured the silver plated contacts). Does it mean a new O2 sensor for sure?
I can't get the connector off the temp sensor (the one at the intake manifold), so I don't know the health of it. Is there a diagram of which pin is what on the ECU cable harness? I know the pin number, but not the numbering on the connector itself. That's another place to measure it.
1997 900SE 2.0T 105k mi
posted by 70.157.136...
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