Car Problem Reports

Subaru Impreza WRX Improved Spark Plug Wires for Misfire Issues

Subaru Impreza WRX Problem
10 Reports
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Model Years Affected: 2004, 2005, 2006, 2007, 2008, 2009, 2010

Engine Affected: 2.0L 4 Cylinder Turbo

Average Mileage: 120,000 mi (34,000 mi - 174,000 mi)


Sometimes the Check Engine Light illuminates because the computer detects misfires. Subaru released an improved spark plug wire set to solve the problem. The ignition coil should also be inspected for carbon tracks or short circuits between the contacts

  • msampson26, , 2.0L 4 Cylinder Turbo, 152,000 mi

    My check engine light will blink and then go off and then a few days later it will be stay illuminated. I have checked the problem with the code reader and its says misfire and it always gives a different spar plug #. I just had these replaced less than 6 months ago there should not be any issues!!

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  • Visitor, , 2.0L 4 Cylinder Turbo, 34,000 mi

    Since new dealer has not been able to solve problem...suggests valves are carboned crusted

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