INDEPENDENT REFERENCE
P0302 — Cylinder 2 misfire detected
Generic powertrain DTC · HIGH priority for follow-up (not a certified safety rating)
What the code means
Misfire detected on cylinder 2; numbering varies by make and engine.
What you might notice
Shuddering; rough idle; weak acceleration.
Possible causes — not a diagnosis
Ignition misfire; injector malfunction; vacuum leak; valve or compression problem.
Useful diagnostic checks
Inspect freeze frame and live misfire counters; compare ignition and injector operation; verify mechanical health.
Next steps
Repair only the fault confirmed by testing.
Related OBD-II codes
These generic definitions are explanatory summaries of commonly standardized OBD-II powertrain conditions. Vehicle-specific code logic and service procedures must be verified against manufacturer documentation. EPA: On-board diagnostics.