Oxygen heater sensor on 2003 Dodge Ram 1500

Check engine light code 0057 Bank 2 Is this drivers side or passenger side?

by in Camarillo, CA on January 11, 2011
1 answer 1 comment
ANSWER by on January 11, 2011
Oxygen sensors are identified by bank and sensor position. Sensor 1 is always pre catalytic converter, sensor two is always post catalytic converter. If an engine is a 4 or 6 cylinder engine the whole engine is considered bank 1, if an engine is a V6, V8, V10....., the engine bank containing cylinder number 1 (first cylinder in the firing order) is considered Bank 1, the other bank is considered Bank 2. Interpretation Oxygen sensor designation B2S1 refers to Bank 2 Sensor 1, it will be the sensor on the engine side of the catalytic converter in bank two. Check this link to determine the cylinder that contains cylinder number 1. http://www.wellsve.com/custom_searches/ds_firing.php
COMMENT by on January 11, 2011
Thank you!
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