2000 Infiniti G20 0170 scanner code

P0170 Fuel Trim Malfunction (Bank 1)

The detection condition for this code is "Fuel injection closed loop correction and learning correction are above the specified value because of system malfunction".

Possible causes include low fuel, pressure regulator malfunction, fuel injector malfunction, fuel pump malfunction, engine coolant temperature sensor malfunction, mass air flow sensor malfunction, heated oxygen sensor malfunction, purge solenoid alfunction, leakage in intake-air system, ECM malfunction, open or short circuit between ECM to fuel injector, intake air temperature sensor malfunction, EGR boost sensor malfunction, or PCV valve malfunction.

Start by checking your fuel delivery.