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Old 10-04-2022, 09:10 AM
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Oxygen sensor heat code
Got a code yesterday (sorry didn’t record the number) but my code reader said something to the effect “ o2 heater before cat on bank 2 insufficient heat.”

Had problems with my O2”s since the bank 1 sensor wire was mis-routed after head gasket repair and melted from too much exhaust manifold heat.

This likely the sensor or the circuit?


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