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-   -   The definitive O2 sensor thread (https://www.jb4tech.com/forums/showthread.php?t=26646)

Kish2604 08-31-2014 02:54 PM

The definitive O2 sensor thread
 
Hi guys... Was hoping to create this thread as a central point of information regarding the o2 sensors on all ranges of the E and F series cars that can have a JB installed,

Hopefully BMS and the other gurus will fill this thread with info based on how the o2 system works, the purpose of the the pre and post sensors and the diff values they log, the codes typically associated when a sensor fails and associated symptoms one could experience.

This thread is conceived to help a lot of first time users of a tune like the jb troubleshoot and understand the system that the jb heavily relies on for safety and why their newly tuned car is defaulting to map 4 after installing the tune, remember the standard dme doesn't have a map 4 safety to default to when running lean so the car could be leaning out for some time previously to the tune.

Thanks!


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