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2004 Hyundai Accent Base 3dr HB Coupe Manual

2004 Hyundai Accent
Trim Info:
Front Wheel Drive, 3 Dr Hatchback Cpe, Subcompact
29 mpg city / 33 mpg hwy
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November 19, 2012, 1:25 pm

Zack C

Question: cylinder misfire

Check engine light came on, so I went to auto zone they said it came up with the codes P0300 and P0328 I am wondering how serious this is or if I can still drive for a few days, the car still rides and drives great.

December 1, 2012, 9:43 am

Ron W
Expert Mechanic

P0328 - Knock Sensor Circuit High Input
P0300 - random Misfire

The knock sensor code is very likely causing the misfire code. Especially if it isn't misfiring. You should have it looked at asap because if it is misfiring you can damage your catalytic converter by continuing to drive it.

Contact the dealer, as many emission related codes/issues are covered under a longer warranty than the regular warranty. You might be able to get it fixed for free.

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