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Home >> Subaru >> 2003 >> Impreza WRX, 4D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Ignition System - DOHC/TC >> Spark Plug >> Inspection >> Normal

Spark Plug: Inspection: Normal

Brown to grayish-tan deposits and slight electrode wear indicate correct spark plug heat range.

Fig 1: Identifying Spark Plug Condition (Normal)
G02686810Courtesy of SUBARU OF AMERICA, INC.
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