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mauricio, Auto Service Technician
Category: Chevy
Satisfied Customers: 845
Experience:  8 years working for GM dealer in Delaware
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Codes po172 po175

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Codes po172 po175

Hello My name isXXXXX'll assist you today.

The only repair for theses codes is to Install the latest Powertrain Control Module (PCM) calibration.


Customer: replied 4 years ago.
So my oxygen sensor are ok its just that why does it go bad

The ECM has a flaw on the software causing theses codes.

Customer: replied 4 years ago.
So it will fix the problem of burning a lot of fuel

When you update the software you will install the latest software on the ECM, the software will improve different areas of the truck, if will improve the fuel millage? maybe all this depends if you have the truck maintenance update, like air filter fuel filter and spark plugs.

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