Question about Ford Expedition
Oxygen sensor is in the exhaust (depending on year & engine there is multiple 02 sensors) And injectors, there are 1 per cylinder.
Posted on Mar 17, 2011
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Posted on Jan 02, 2017
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Fuel Trim Bank Two Condition
- The ECM has detected a rich or lean air/fuel ratio condition on engine bank two
Fuel trim bank one condition
- The powertrain control module uses the oxygen sensor to calculate the air/fuel ratio of the engine. The computer has recognized a rich or lean condition on one engine bank only.
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