BMW F10 P0171 — Mixture Too Lean. Can We Find the Leak?

BMW F10 P0171 code — System Too Lean (Bank 1). Full diagnosis and fix.In this video I show how to diagnose and fix the P0171 error on the BMW 5 Series F10. This code means the engine is running too lean on Bank 1.What you’ll see: • What P0171 actually means • How to smoke test and find the leak • The real fix that clears the code • Final test with no faults Ignoring a lean condition can damage the engine and catalytic converter. Let’s find out if we can track it down.Like and subscribe if this helped. Comment your year and engine code.#BMWF10 #P0171 #LeanCode #DIY