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Posts Tagged: P1621

P1621, P1622 Chrysler Oxygen sensor

Fix P1621 P1622 Chrysler oxygen sensor code Chrysler has issued a service bulletin #18-039-13 to address a P1621, P1622 Chrysler oxygen sensor code on the vehicle listed below: 2014 (LC) Challenger 2014 (LX) 300 2014 (LD) Charger Do NOT replace oxygen sensor to fix the P1621, P1622 Chrysler trouble code! The P1622 code translates as O2 Sensor Reference Voltage Circuit Low and the P1622 Sensor Reference Voltage Circuit High Chrysler has identified a SOFTWARE flaw that can cause these codes to set even though the oxygen sensors are performing normally. … Read More


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