Troubleshoot P1174 for Pontiac G6

Question

Have a code P1174 Fuel Trim Cylinder Balance. Need to know what to check

Answer 1

P1174 Fuel trim cylinder balance

What you need to check is the 02 sensor the upstream 02 sensor also known as the engine management sensor, if this is a aftermarket you can code P1174.. Look for any vacuum leaks ,check sparkplug replace if worn,and airfilter if in need of replacement