Subject	IIRC
Posted by	NytWolf on December 17, 2009 at 11:31 AM
	This message has been viewed 149 times.
In Reply To	o2 sensors - kinda confused with testing posted by pearlzed on December 17, 2009 at 10:19 AM
Message	Make sure your ECU is in Diagnostic Mode II. Mode I is for reading engine codes, Mode II is for O2 sensor checking. The on and off of the light tells you that the O2 is sensing an oxygen mixture above or below the expected ratio -- rich or lean. The reason you do the test at 2000RPM is ensure you have a fluctuation.
Follow Ups	o2 sensors - kinda confused with testing - pearlzed 10:19:16 12/17/09 Everyone's "on/off" is a little different. Its like checking - NobleZ 10:55:13 12/17/09 just tested them and... - pearlzed 11:08:29 12/17/09 I would say yes. if they are 50,000+ miles old, the car will - NobleZ 11:15:29 12/17/09 now which ones? :s - pearlzed 11:17:51 12/17/09 Bosch or OEM nissan. some NTK O2s are actually Bosch - NobleZ 11:28:12 12/17/09 this is what i found for NGK - pearlzed 11:44:42 12/17/09 It's your call, but most will recommend OEM Nissan. (n/m) - marklar182 11:28:14 12/17/09 IIRC - NytWolf 11:31:27 12/17/09 thanks yea i did make sure of that! - pearlzed 11:46:01 12/17/09 Something else on checking O2s. Even if they blink >>> - ZUL8TR 12:24:49 12/17/09 yeah i am replacing them both - pearlzed 12:42:09 12/17/09
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