I have a 96 Civic Hatchback with a 1.6L. My engine would misfire (engine light would come on) only when the engine is under strain... such as climbing a hill in 5th gear or over 100kph... when I'm scooting around town it's fine. I've replaced the spark plugs , ignition wires, distributor cap and rotor... but it still will misfire under the same circumstances... I don't know what to do next!! Could it be a fuel problem?

Thanks Pat

Replacing the igniter and coil should solve the problem. Remember to coat the back of the igniter with silicone grease before installing.