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03-07-2017, 10:13 AM
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#1 |
 Drives: 05 echo rs Join Date: Dec 2016
Location: Toronto
Posts: 11
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P0420 Engine light
Hi guys im new to the forum picked up a 04 echo rs with 195,600km on it was driving and had engine light come on for P0420 catalyst system efficiency below threshold bank 1, tried everything from replacing both 02 sensors checked the inside of the catalytic converter and was intact, need help im not able to pass the emissions if any of you guys have encountered this problem and can help i would appreciate it thx guys
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