It means that the oxygen sensor is detecting a lean condition. This could be just a vacuum leak.
HOW DO I FIND THIS LEAK AND WERE IS THE MAF SENSOR LOCATED
The 2003 Chevrolet Malibu has 12 valves.
The 2003 Chevrolet Malibu has a V6 engine.
The 2003 Chevrolet Malibu has overhead valves (OHV).
The 2003 Chevrolet Malibu has a 4-speed automatic.
The 2003 Chevrolet Malibu is a gas-powered vehicle.
The height of the 2003 Chevrolet Malibu is 4 ft. 8.4 in. (56.4 in.).
The 2003 Chevrolet Malibu is 15 ft. 10.4 in. (190.4 in.) long.
The curb weight of the 2003 Chevrolet Malibu is 3106 lbs..
The 2003 Chevrolet Malibu's turning circle is 36.3 ft..
The 2003 Chevrolet Malibu runs on regular unleaded.
The 2003 Chevrolet Malibu has 37.6 in. of rear head room.
The 2003 Chevrolet Malibu has 38 in. of rear leg room.