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Home >> Cadillac >> 1991 >> Seville Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Tests >> Pcm Code EO53, Distributor Signal Interrupt >> Failure Conditions:

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Failure Conditions:

Engine speed is greater than 568 RPM, followed by no distributor reference pulses .4 second.

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