Mercury Monterey P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Mercury Monterey is a general diagnostic trouble code.  It means that the “bank 1” oxygen sensor (third oxygen sensor from the exhaust manifold, behind a catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture.   This does not necessarily mean that the vehicle is running lean (although it can, … Read more

Mercury Mountaineer P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Mercury Mountaineer is a general diagnostic trouble code.  It means that the “bank 1” oxygen sensor (third oxygen sensor from the exhaust manifold, behind a catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture.   This does not necessarily mean that the vehicle is running lean (although it can, … Read more

Mercury Sable P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Mercury Sable is a general diagnostic trouble code.  It means that the “bank 1” oxygen sensor (third oxygen sensor from the exhaust manifold, behind a catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture.   This does not necessarily mean that the vehicle is running lean (although it can, … Read more

Mercury Villager P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Mercury Villager is a general diagnostic trouble code.  It means that the “bank 1” oxygen sensor (third oxygen sensor from the exhaust manifold, behind a catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture.   This does not necessarily mean that the vehicle is running lean (although it can, … Read more

Pontiac Grand Am P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Pontiac Grand Am is a general diagnostic trouble code.  It means that the “bank 1” oxygen sensor (third oxygen sensor from the exhaust manifold, behind a catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture.   This does not necessarily mean that the vehicle is running lean (although it … Read more

Pontiac Grand Prix P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Pontiac Grand Prix is a general diagnostic trouble code.  It means that the “bank 1” oxygen sensor (third oxygen sensor from the exhaust manifold, behind a catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture.   This does not necessarily mean that the vehicle is running lean (although it … Read more

Jeep Grand Cherokee P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Jeep Grand Cherokee is a general diagnostic trouble code.  It means that the “bank 1” oxygen sensor (third oxygen sensor from the exhaust manifold, behind a catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture.   This does not necessarily mean that the vehicle is running lean (although it … Read more

Ford Transit Courier P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Ford Transit Courier is a general diagnostic trouble code.  It means that the “bank 1” oxygen sensor (third oxygen sensor from the exhaust manifold, behind a catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture.   This does not necessarily mean that the vehicle is running lean (although it … Read more

Ford Transit Connect P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Ford Transit Connect is a general diagnostic trouble code.  It means that the “bank 1” oxygen sensor (third oxygen sensor from the exhaust manifold, behind a catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture.   This does not necessarily mean that the vehicle is running lean (although it … Read more

Chevy Monte Carlo P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Chevy Monte Carlo is a general diagnostic trouble code.  It means that the “bank 1” oxygen sensor (third oxygen sensor from the exhaust manifold, behind a catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture.   This does not necessarily mean that the vehicle is running lean (although it … Read more