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FJR Motorcycle Forums
Technical & Mechanical Problems
PC III and O2 Sensor Question
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<blockquote data-quote="Gitbox" data-source="post: 1247325" data-attributes="member: 86950"><p>I guess I'll have to throw a scope on the sensor and see if it ever enters closed loop mode. I am assuming of course that the trace should look like a car's O2 signal. I might add some propane and a vacuum leak to see if the sensor responds correctly. It'd be so much easier if the bike was OBD II compliant. <img src="https://www.fjrforum.com/forum//public/style_emoticons/default/smile.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Ross: Odd that the ECU would care if there was a too lean or too rich condition, but not care if the O2 sensor was missing. Very weird.</p><p></p><p>Hah! Maybe that's why the PC III instructions omit the O2 sensor completely. If the ECU doesn't care, why should it? <img src="https://www.fjrforum.com/forum//public/style_emoticons/default/rolleyes.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Gitbox, post: 1247325, member: 86950"] I guess I'll have to throw a scope on the sensor and see if it ever enters closed loop mode. I am assuming of course that the trace should look like a car's O2 signal. I might add some propane and a vacuum leak to see if the sensor responds correctly. It'd be so much easier if the bike was OBD II compliant. [IMG]https://www.fjrforum.com/forum//public/style_emoticons/default/smile.png[/IMG] Ross: Odd that the ECU would care if there was a too lean or too rich condition, but not care if the O2 sensor was missing. Very weird. Hah! Maybe that's why the PC III instructions omit the O2 sensor completely. If the ECU doesn't care, why should it? [IMG]https://www.fjrforum.com/forum//public/style_emoticons/default/rolleyes.gif[/IMG] [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
PC III and O2 Sensor Question
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