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i need advice on how to fix this code problem all by myself please,the check engine amber light is showing so also is the red check light on the TOD.Please help

Read more: https://www.autocodes.com/qa/19210/how-do-i-fix-the-code-for-my-isuzu-trooper-2002#ixzz2iNYlsvtC

Vehicle: 01 sept,isuzu trooper,2002,3.5L

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Hi there,

Typically when you have this code you will need to replace the bank 2 catalytic converter. The code is for the catalyst efficiency below threshold. This basically means the converter is no longer doing it's job. Sometimes other things can cause the code, such as a poorly running engine, an exhaust leak or a problem with the rear O2 sensor.

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