Does bank 1 mean cyl 1?

Question

I have trouble code p0171 system lean bank 1 does this mean cyl 1

Answer 1

Hi there,

Bank one on this engine are the odd number cylinders. So, 1,3,5 and 7 make up bank 1. This code usually indicates a lean fuel mix caused by intake manifold leaks or sometimes the front O2 sensor on bank 1.