P0172 Chevrolet - How do I fix P0172 and P0175 on a 2010 Chevy Tahoe?

Question

I have a P0172 and P0175 code on my 2010 Tahoe. Most mechanics say that they ususally see these codes in older vehicles. What can I do to fix this?

Answer 1

P0172 Fuel trim too rich Bank1

P0175 Fuel trim too rich Bank2

You can get this code is the air filter is plugged up, And this engine uses a MAP (manifold absolute pressure sensor) so a vacuul leak will cause a rich running condition, There is also a possibilty these code are the result of the TPS sensor  (throttle position sensor) Check to see if recall campaign has been performed on your vehicle . Campaign 11273 - Throttle position sensor replacement.