Signs of a Bad Honda Fuel Filter | It Still Runs Signs of a Bad Honda Fuel Filter. The fuel filter in any Honda automobile should be replaced every 30,000 miles. Drivers that push vehicles farther on the same fuel filters risk diminished fuel economy, weakened engine power and even damage to other engine parts. A vehicle experiencing these symptoms must be attended to immediately.. Honda 5 Symptoms of a Bad Fuel System | Honda-tech Mar 13, 2015Honda: 5 Symptoms of a Bad Fuel System. This article applies to the Honda Accord (1990-2002), and Civic (1992-2000). The fuel system in your Honda Accord and Civic consists of many working parts. Each part is designed to work in sync with your car's entire fuel system to deliver optimum fuel flow to the engine,..