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2007 Hyundai Accent - first, P0461 code; solid check engine light; then p0300/p0303 and p034 codes with engine knocking (felt like this) flashing check engine light. Feels like engine hesitation at steady speeds below 50 km per hour

Vehicle: 2007 Hyundai GLS 1.9

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P0300 Random misfire

P0303 Misfire number 3 cylinder

P0304 Misfire number 4 cylinder

P0461 Fuel level sensor "A" circuit range/performance

When the check engine light flashes this indicates a misfire that is catalytic damaging, You need to get the engine mechanical condition check . The reason being having cylinder 3 and 4 which are right next to each other may have a cylinder head problem This would be the worst case scenerio. On the lighter side you can have failed ignition coil of 3 and 4 and a replacement would be the solution. and even a lighter side would be fuel pressure being out of specification.A mechanical condition has to be ruled out first

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