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2008 GMC Sierra 4.8L, what are the engine codes P0101 and P0235?

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2008 GMC Sierra 4.8L, what are the engine codes P0101 and P0235?

Vehicle: 2008 GMC Sierra 4.8L

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HI there

The P0101 code is a code for the mass air flow sensor. It indicates an issue with the sensor itself and usually requires a new sensor. The other code, P0235 isn't a valid code sorry to say.
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P0101 GMC Code - Mass Air Flow Sensor Performance
Read more: https://www.autocodes.com/p0101_gmc.html

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