bosch, theres the problem...
no the check engine light doesn't always come on
no the check engine light doesn't always come on
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Absolutely WRONG!!!!!!!![]()
http://tuneyourharley.com/biketech/content/how-richen-closed-loop-efi (top)
http://www.allpar.com/neon/oxygen-sensor.html (at the bottom)
http://www.autotap.com/articles/Understanding_Oxygen_Sensors.html (how it works section)
http://www.import-car.com/Article/46361/diagnostic_solutions_rediscovering_oxygen_sensors.aspx (zirconia basics)
NOW... what is your final answer? i can find more. i can scan books, whats it going to take?
i didn't waste my money on schooling for nothing, i don't work at an auto shop for nothing.
O2 sensors "pump" o2 molecules in the process.
and another thing that might blow your mind.. O2 sensors don't EVEN sense oxygen, but thats a whole other topic.
bottom line, i know what im talking about. im done