Question about 2007 Chevrolet Suburban Three-Quarter-Ton LS

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Changed the exhaust on 2007 3/4 ton suburban. Now the emmission control is lit. Any way of resetting this?

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Go to a chain store auto parts place or Midas muffler and get them to read the code. They do this for free assuming that you will buy parts there or let them fix it. Anyway, you O2 sensors are in the exhaust pipe, maybe there was a wire left off or a sensor was damaged when they changed from one to the other. If the diameter of the new exhause is too small and restricts the exhaust, it can affect the emissions and the performance. If nothing is really wrong, the computer will reseset itself after about 50 key starts, but there probably something wrong that caused the light to come on in the first place. O2 sensor system make the most sense.

Posted on Sep 08, 2010


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