I got the engine code P0171 on my 2012 Nissan 370Z Nismo, how to fix code?

Question

I got the engine code P0171 on my 2012 Nissan 370Z Nismo 3.7L gives this code to me all the time, how to fix the code?

Answer 1

P0171 means there is too much air and not enough fuel. The easiest things you can check are intake leaks, clean the mass air flow with mass air flow sensor cleaner, check for exhaust leaks. See list below for more info

P0171 Nissan - Fuel Injection System Too Lean Bank 1

Possible causes:

• Intake air leaks

• A/F sensor 1

• Fuel injector

• Exhaust gas leaks

• Incorrect fuel pressure

• Lack of fuel

• Mass air flow sensor

• Incorrect PCV hose connection