Code P0432

Tiny
BURR
  • MEMBER
  • JEEP WRANGLER
Hi I have a 2001 jeep wrangler set code p0432 this jeep has 4.0L motor it has two mini cats as well as the main cat jeep is running fine just has intermittent check light thanks for any help you can give me
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Monday, February 27th, 2006 AT 11:42 AM

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Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
P0432 Main Catalyst Efficiency Below Threshold (Bank 2)

This engine code can be triggered by any one of the following:

1.) The catalyst in the catalytic converter is cracked, clogged, or otherwise damaged.
2.) The secondary O2 sensor is malfunctioning.
3.) There is an exhaust leak.
4.) The computer unit is faulty

Need to have converters flow tested. Also need to check oxygen sensors. To learn how to check an O2 sensor, follow the link below..

https://www.2carpros.com/how_to/how_to_test_oxygen_sensor.htm

Thanks for using 2CarPros.com!
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Wednesday, March 4th, 2009 AT 11:06 AM

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