P0174 97 ford Taurus

Question

Check engine light on P0174 bank lean 2

Answer 1

P0174 Ford - Fuel Injection System Too Lean Bank 2

this means there is too much air and not enough fuel. The first thing to do is check to see if there are any intake leaks, a broken or cracked hose can also cause this issue

 

see picture below for one of the things to check.

 

 

 

Possible causes

- Intake air leaks

- Faulty front heated oxygen sensor

- Ignition misfiring 

- Faulty fuel injectors 

- Exhaust gas leaks

- Incorrect fuel pressure

- Lack of fuel

- Faulty Mass Air Flow (MAF) sensor

- Incorrect Positive Crankcase Ventilation (PCV) hose connection

 

if you cant fix it take it to a mechanic who has a smoke test mechine it will be a lot easier