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Q: would the catalytic converter call the check engine to come on on 2006 GMC Envoy

i charge my spark plugs
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Yes , a failed converter would. Recommend having the CAUSE of the failure diagnosed first before wasting money on a converter and still having problems. Post codes for further advice.
rec. fuel system clean. ethanol treatment to 1 tank premium fuel. ethanol blend in fuel causes build up in fuel system, combustion chambers and exhaust system. this build up can trip sensors.
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