2002 GMC Sonoma Q&A
2002 GMC Sonoma Question: Check Engine Lite is on
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 firstname.lastname@example.org - backyard tech
Check out these articles in the RepairPal Encyclopedia; http://repairpal.com/check-engine-light http://repairpal.com/check-engine-light-diagnostic-assistant - fernando
02 sensor front of catalytic converter or rear of converter. - Visitor
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