Test Your Lean P0171 / P0174 Diagnostic Skills-Pt3

Continued from Part 2, we finish our fuel injector balance test and see if that is our problem or will we move on to looking for an exhaust leak? Part 1 of the series is here:   • Test Your Lean Condition P0171 / P0174 Dia...   Part 4 is here:   • Test Your Lean P0171 / P0174 Diagnostic Sk...