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Home >> Chrysler >> 2004 >> Pacifica AWD >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Emissions Control System >> Description >> Operation - Non-Monitored Circuits >> Cylinder Compression

Cylinder Compression

The PCM cannot detect uneven, low, or high engine cylinder compression. Low compression lowers, O2 content in the exhaust. Leading to fuel system, oxygen sensor, or misfire detection fault.