How do I fix P0171 system Too Lean Bank 1?

How do I fix P0171 system Too Lean Bank 1?

What repairs can fix the P0171 code?

1. Replacing the fuel pump.
2. Replacing the fuel filter.
3. Replacing the fuel pressure regulator.
4. Replacing the powertrain control module.
5. Replacing one or more injectors.
6. Replacing one or more oxygen sensors.
7. Replacing the mass air flow sensor.
8. Repairing a vacuum leak.

Can a dirty MAF cause a P0171?

A bad mass air flow sensor causes various driveability problems, such as a no-start, stalling, lack of power and poor acceleration. A bad or contaminated mass air flow sensor can cause trouble codes P0171 System Too Lean and P0144 System Too Lean.

Can a dirty air filter cause a po171 code?

Can a dirty air filter cause a P0171 code? If the filter is clogged or excessively dirty, this is enough to impede or restrict the air flow, hence resulting in a lean running condition. Besides a dirty air filter, the P0171 code can also be blamed on a dirty or faulty MAF sensor and a clogged fuel filter.

What’s po174?

What the P0174 code means. Code P0174 indicates that there is a lean condition detected by the Engine Control Module (ECM). A lean condition will be created if there is too much air, and not enough fuel, in the air fuel ratio (AFR).

What does the p0171 code on an engine mean?

System Too Lean (Bank 1) What the P0171 code means The P0171 OBD-II code means that, on the first bank of the engine, the fuel system is running weak or a vacuum leak exists near this side of the engine. A lean condition occurs when the engine either receives too little fuel or too much air.

How long does it take to diagnose Hyundai p0171 code?

If there are no intake leaks, the next step is to replace the air filter and clean the air flow meter. If the problem persists the front oxygen (O2) sensor may need to be replaced. The cost of diagnosing the P0171 HYUNDAI code is 1.0 hour of labor.

When to set the freeze frame code p0171?

Typically, the code P0171 is set when either short term fuel trim (STFT) or long term fuel trim (LTFT) adjustment exceeds a certain value (usually +25%). Read more about the freeze frame . What does the term “Bank 1” mean? Bank1 and Bank2 in a V6 engine. The terms “Bank 1” and “Bank 2” refer to a separate group of engine cylinders.