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P0546 Diagnostic Trouble Code Discussion for May 2008

Exhaust Gas Temperature Sensor 1 Circuit High Voltage

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Trouble Ticket Help Requests for DTC P0546
Help Request Posted
2007 Chevrolet C4500 Kodiak C4C042 6.6L Hesitation, Poor Fuel Economy, No power VIN: 1GBC4C1987
P0546: Undocumented. This truck have not been work on by us, but have the spacers been put in by telecommunication service man so the truck can drive to our shop. it seems that its clogged up but not sure why and how it works. The catalytic convertor thing seems to have two hose a...
May 19, 2008