09/11/2023
🌟Subaru Impreza🌟
⚠️A faulty spark plug causes premature failure of ignition coils, which then damage the ECU.
⚠️The customer complained about a misfire and took the vehicle to a garage to have it repaired. Initial troubleshooting led to a damaged ignition coil, which was then replaced. The car ran for a couple minutes, and then the second coil was damaged.
📲The mechanic called us in to troubleshoot the issue.
⚠️The output of the ECU that drives the ignition coil showed a continuous abnormal voltage, which explained the damaged coils.
✅️The ECU was then replaced, and the spark plug in question was removed and inspected. The tip was completely burned, which explained the initial coil failure.
✅️All spark plugs were replaced, and the car runs perfectly.
Side note: This car has a CNG system installed; therefore, strict routine maintenance should be adhered to.
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