Most likely the clamp on the fuel line has worn through the line - check the fittings and perhaps replace fuel line
the owners manual states that replacement of the fuel filter is not required.
I have a supercharged 1995 Bonneville and this code has come up quite often. It is a Fuel Trim code. Your fuel is either burning rich or lean.
Answering "1999 Pontiac Bonneville fuel shut off switch?"
where is the fuel pump relay located on a 1992 Pontiac Bonneville on the outside or the inside
behind the driver, under the vehicle.
where is the fuel pump relay located on a 1992 Pontiac Bonneville on the outside or the inside
If the Bonneville is like my GTP then the fuel filter is in front of the fuel tank
The average cost to replace a 2000 Pontiac fuel pump is $350. The fuel pump is inside of the gas tank. The location of the fuel pump adds several hours of labor to the cost.
In the fuel tank
It is inside the fuel tank, you have to drop the tank, and remove the sending unit, from the tank to replace the fuel pump.
Fuel capacity on a 2001 Pontiac Bonneville is 18 gallons.
it is in your tank