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Home >> Porsche >> 1991 >> 911 Turbo >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Self-Diagnostic System >> Clearing Codes >> Using CHECK ENGINE Light
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Using CHECK ENGINE Light

Make sure the fault causing the CHECK ENGINE light to come on has been repaired, then depress and hold accelerator pedal at WOT for more than 12 seconds. The CHECK ENGINE light goes out briefly after 3, 7 and 10-second intervals to indicate that fault code memory has been cleared.