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Home >> Geo >> 1991 >> Prizm LSi, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> PRIZM GSi CODE CHARTS (VIN 5) >> Code 53, Knock Control Signal/Faulty ECM

Code 53, Knock Control Signal/Faulty ECM

Fig 1: Code 53 Flow Chart, Knock Control Signal/Faulty ECM

G91D16827

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