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Home >> Chrysler >> 2007 >> PT Cruiser Base, 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Emission Control System >> Description >> Non Monitored Circuits >> Cylinder Compression

Cylinder Compression

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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.