P1174 Chevrolet -

Question

how do you clear a p1174 code?

Answer 1

P1174 Fuel trim balance

Codes can either be cleared with a scan tool. or correcting the condition and the ECM if it sees a correction will extinguish the light after certain amount of drive cycles are met and driving conditions.  P1174 is a B type code condition this can be intermittent , do a MAF (mass airflow ) cleaning and a throttle body cleaning, If the sparkplugs are worn replace it.