Fault code P0216 – a step-by-step guide to diagnosing and fixing it

Error code P0216 is displayed and the check engine light is on - what does this mean?

The DTC P0216 is recognized by the OBD/EOBD system when a problem with the ignition control is detected. This fault code indicates a malfunction in the ignition system that may affect engine performance and proper operation. Depending on the vehicle manufacturer, there may be slight variations in the interpretation of this trouble code.

What causes can this fault code have?

• Defective ignition coil
• Damaged ignition cables or spark plug connectors
• Worn or incorrectly adjusted spark plugs
• Faulty ignition controller software
• Loose or corroded plug connections in the ignition system
• Defective crankshaft sensor
• Problems with the engine control unit wiring
• Mechanical engine damage such as a worn camshaft

What symptoms occur in parallel with error code P0216?

• Engine faults: Unsteady engine running, jerking or stuttering while driving
• Power loss: Noticeably reduced engine power and poor acceleration
• Starting problems: Difficulty starting the engine or longer starting times
• Increased fuel consumption: Significantly increased fuel consumption
• Exhaust problems: Black or white smoke from the exhaust
• Engine noise: Unusual knocking or misfiring noises

How to fix the problem of fault code P0216?

• Fixing fault code P0216 requires a systematic diagnosis of the ignition system.
• Replace the spark plugs completely: Replace all spark plugs with new, manufacturer-specific plugs and have them correctly adjusted
• Check and replace ignition coils: Identify defective ignition coils and replace with new original parts
• Replace ignition cables and plugs: Replace the complete ignition cable set including all plug connections
• Carry out an engine control unit update: Have the software update installed by a specialist dealer and recalibrate the ignition parameters
• Replace crankshaft sensor: Remove sensor and replace with new original part, then carry out basic adjustment
• Repair electrical connections: Check all cable connections in the ignition system for corrosion and replace defective cables