I have 2006 cobalt ss, yesterday engine light came on so I looked around and fill the windsheild washer and light was gone but just for one day, then I pluged in code reader and got this code. Can anyone tell me , if it's a serious problem or something I can do myself. I would appreciate any help. Thanks

See if this helps:

DTC P1174--Fuel Trim Cylinder Balance.

The fuel trim cylinder balance diagnostic is sensitive to H02S design. Also, a non-OEM sensor or an incorrect part no. may set a false DTC.

Inspect the air induction system for modified, damaged, leaking, or restricted components. Consider:

. Replacing air filter.

. Replacing air cleaner assembly.

Thanks for replying . I' ll try this tomorrow.