Pontiac G5 P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Pontiac G5 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 GTO P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Pontiac GTO 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 Montana P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Pontiac Montana 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 Sunfire P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Pontiac Sunfire 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 G8 P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Pontiac G8 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 Torrent P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Pontiac Torrent 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 Vibe P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Pontiac Vibe 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

Cadillac XTS P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Cadillac XTS 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

Cadillac XLR P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Cadillac XLR 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

Cadillac STS P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Cadillac STS 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