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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> External Pages >> Different car >> Section 102 (2.4L Engine - DTCS P0335 To P0508) >> Diagnosis And Testing >> P0420-Catalyst 1/1 Efficiency >> Monitor Conditions

Monitor Conditions

WARNING: This page is about a different car, the 2006 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
  1. When Monitored: 

    After engine warm up to 70°C (158°F), 180 seconds of open throttle operation, at a speed greater than 18 mph and less than 55 mph, with the engine at 1200-1700 RPM and MAP vacuum between 15.0 and 21.0 inches of mercury (Hg).

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