The air/fuel sensor, located in the exhaust system, may be damaged by moisture in the exhaust resulting in illumination of the Check Engine Light. Replacing the damaged air/fuel sensor and updating the powertrain control module (PCM) software should correct this concern.
Check Engine Light Due to Air Fuel Sensor Fault on Honda CR-V
Average mileage: 47,000 (47,000–47,000)
1 model year affected: 2006
2 people reported this problem
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Same problem. Air/fuel sensor and O2 sensor codes are coming on. Dealer states I have to pay for computer upgrade to ECU. Per call to honda customer satisfaction line, the ECU is covered for 80,000 via federal emissions guidelines and this repair should be under warranty. I need to repay the dealer a visit who was initially telling me I would have to pay for this repair.