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Megan Header installed, I have some problems/question.

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Old 05-12-2005, 12:50 AM
  #121  
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Originally Posted by DouBLeJ16
Originally Posted by Scott17
The engine only has 1 bank since it's a 4 cyl. That terminology is in there for V engines as well. The 4 cyl. is always going to be bank 1, sensor ? the sensors are numbered from the exhaust port out. Bank 1 sensor 2 is the last O2 sensor in the stream. The first is actually an A/F ratio sensor.
but it doesn't tell you what sensor is having the problems then you check the code. it's P0420 and it doesn't give a sensor number, it just says problems with bank 1 (it doesn't even mention a sensor)

do you know what that code means?
The code means catalyst efficiency below threshold. It means the converter is not working properly.
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Old 05-12-2005, 08:25 AM
  #122  
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how do I correct this problem?
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