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Check Engine Lite is on

(2002 GMC Sonoma)
in South Bend, IN on November 27, 2009
What are the possible problems associated with the illumination of the Check Engine Lite.
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Displaying 3 answers & 1 comment
Popular Answer
on November 27, 2009
Check out these articles in the RepairPal Encyclopedia;
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on November 27, 2009
Go to a Advance or Autozone parts house and ask them to code out the computer. Ask for the code numbers. e-mail me at
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on November 27, 2009
Can't help without a TROUBLE CODE
on April 12, 2010
02 sensor front of catalytic converter or rear of converter.
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