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Can a exhaust near the o2 sensor on a 1999 Bonneville cause lack of power

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It is very possible that there will be a lack of power. Check that the cat converter is in good condition as they break up and block the exhaust. A faulty o2 sensor will also cause a lack of power as it sends the wrong signal to the ECM to keep the mixture right.

Posted on Nov 14, 2014

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Posted on Jan 02, 2017

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