✅ Fixed
Replaced all spark plugs with NGK iridium plugs. One coil pack was also weak — replaced. Smooth idle restored immediately.
Hyundai Santa Fe 2020 P0300 random misfire rough idle
Safe to Drive?
⚠️ Drive with Caution
Urgency Level
🟠 Fix Soon
Hyundai Santa Fe 2020 P0300 random misfire detected. Engine shaking at idle. Check engine light on. 173787 km. This fault code is stored when the engine control unit detects a specific fault condition. Common causes include sensor failures, wiring faults, and component wear. Always read additional fault codes before replacing parts — multiple codes together provide a clearer diagnosis. Clear the code after repair and test drive to confirm the fault does not return.
🔍 Symptoms
📍 Hyundai Santa Fe
⚠️ P0300 fault code
⚙️ Possible Causes
Fault code P0300 detected
Hyundai Santa Fe
Possible: Replaced all spark plugs with NGK iridium plugs. One coil pack was also weak — replaced. Smooth idle restored immediately.
Repair / Solution
Based on 32 driver confirmations
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