Questions and Answers
Honda Accord LX Code P0301 And P0303
Q. Sir, My dilemma is that my check engine light came on and I took my car to a reputable Honda shop and they diagnosed the code as P0301 and P0303 which is a cylinder misfire on the #1 and #3 cylinders. They informed me that this was due to bad spark plugs and since I was due for a 90,000 mile maintenance anyway they would replace the plugs as part of that maintenance and this would correct the problem.
Well, they replaced the oil filter, air filter, spark plugs, brake fluid, balance belt, timing belt, water pump, alternator belt, p/s belt, cam seal, balance seal, seal retainer, coolant, and d/p gasket. it was quite a bill but I have been told by friends and relatives not to take chances with the timing belt so I had the Honda shop do it all since they had the car for the day anyway. well that was well and good until this morning, the first day back with the car, the check engine light came on again.
My question is what can cause a cylinder misfire and what else should I be aware of from this diagnosis? Thank you very much for your help.1996 Honda Accord LX 4door
4 cylinder
Manual transmission (5 speed)
89,000 milesSincerely,
KevinA. The usual cause of a mis-fire code is a bad fuel injector, a problem in one of the injector circuits or a problem with the ignition system. Since the plugs were replaced, I would suggest a new distributor cap. rotor and ignition wires. That will, most likely, clear up the misfire.
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