Question

I have a 2010 Chevrolet Traverse 3.6L and the code is p2178. How can I fix it? Thanks!

Answer 1

HI there

Basically, this code means the fuel system is too rich during acceleration, or during cruising speeds. This can be the result of a faulty mass air flow sensor or a problem with the fuel pressure being too high. Here is some more info.

P2178 CHEVROLET - Fuel Trim System Rich At Cruise Or Acceleration
Read more: https://www.autocodes.com/p2178_chevrolet.html