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Home >> Cadillac >> 1995 >> Eldorado Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Pcm Code Charts >> Code P048, EGR System Fault >> Failure Conditions
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Failure Conditions

PCM turns off EGR system for 5 seconds. PCM monitors rear fuel integrator for change. Oxygen sensor fails to indicate a leaner mixture in at least 3 of 5 tests during key cycle.

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