P0171 2008 Honda Accord -d24392

Question

I changed my cat converter and my two O2 sensors on my 2007 Honda accord .after two months my check engine light came on . I rechecked the codes and has three codes po420.po171 and po137 what seems to b the problem?

Answer 1

p0171 can be caused be an intake leak or low fuel pressure, they will have to be checked 

see Possible causes below

- 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