P040c duramax -

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Carguy1 · Answer 1 · 2019-03-11T20:18:16+0000

Hi there,

This code indicates an issue with the EGR temp sensor. Here is some info for you.

P040C CHEVROLET - Exhaust Gas Recirculation Temperature Sensor 'A' Circuit Low

Read more: https://www.autocodes.com/p040c_chevrolet.html