P0171 HONDA -

Question

increased gas consumption, check engine light on, 1996 Honda Accord po171...what to do?

Answer 1

This code indicates a lean fuel mixture. Check the pcv valve hose and intake manifold for vacuum leaks. This can also be caused by a weak fuel pump. Exhaust leak and the front O2 sensor can also cause this code. No specific part without a lot of testing.