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P0303 Diagnostic Trouble Code Discussion for January 2024

Cylinder 3 Misfire Detected

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Trouble Ticket Help Requests for DTC P0303
Help Request Posted
2017 Honda Accord Sport Special Edition 2.4L Misfire, MIL Lamp on, No throttle response VIN: 1HGCR2F17H
P0303: 3 cylinder misfire. ... Limp Mode condition that results in limited throttle response. Once engine shuts off and restart, problem may disappear for a few days. Had a code P0303 even replacing all new (OEM) coils and (NGK)plugs. Did not find anything wrong in the wire harness...
January 13, 2024
2013 Land Rover Range Rover Sport Supercharged 5.0L Poor Idle Quality, Misfire VIN: SALSH2E44D
Vehicle has multiple misfires on both banks. Initially it appeared to be only on one bank, and misfire counts where highest on cylinder 5. Swapped ignition coil, replaced all plugs, still misfires. Clogged injectors is a common issue all injectors on rh si...
January 26, 2024