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P0307 — Cylinder 7 Misfire Detected

Cylinder 7 is misfiring. V8+ engines.

Severity: HighRepair: $20-$800Difficulty: Easy

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Common symptoms of P0307

Common causes of P0307

Repair cost & difficulty

Typical cost to fix P0307: $20-$800 · Difficulty: Easy

Pro tip: V8 misfire diagnosis is the same — swap coils/plugs to isolate.

Vehicles commonly affected

V8 engines

Related trouble codes

P0300

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ScanFixAI is a diagnostic aid, not a substitute for professional repair. Cost estimates are typical ranges and vary by vehicle and region.