It depends on which sensor is turning it on. There are 1-Trip, 3-Trip, and
Instant-On codes and depending on the sensor/part/module failure, the light
can either turn off or stay on. In your case, yes...an O2 code will keep
the light on...even stored. Year/model depending (PCM programming)
- Bernd (notice...no "t" on the end of my name) :)
-----Original Message-----
From: Tom Coulter [mailto:metalshop@optonline.net]
Sent: Thursday, May 21, 2009 9:08 AM
To: Dakota Mailing List
Subject: DML: RE: O2 Sensors - reprise
OK Berndt. And when you say:
"If the problem is gone, the PCM will change the status to Stored but it
will stay in the system until cleared (or as noted...255 key cycles)."
does that mean that the Check Engine message will remain lit on the panel as
well?
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