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Home >> Chrysler >> 2005 >> PT Cruiser Base, 2D Convertible, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 112 (Emissions Control) >> Emissions Control >> Description >> Operation - Non-Monitored Circuits >> Cylinder Compression

Cylinder Compression

WARNING: This page is about a different car, the 2005 Dodge SX, 2005 Dodge SRT-4, and 2005 Dodge Neon. However, it is still accessible from the selected car via links, so may be relevant.

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.

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