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This will result in low fuel being sent to the combustion chamber. Continue with Recommended Cookies. of the most important elements that any driver must keep an eye on. Convenient Car Removal For Busy Schedules: Same Day Car Pickup. An example of data being processed may be a unique identifier stored in a cookie. When you are cleaning the MAF sensor to hold it vertically, the spray drops on the floor and not damaging the sensor. If not, you need to test your MAF sensor and see if its faulty. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. It can also push too much air into the system, resulting in a P0171 code. If you are a good troubleshooter, you can diagnose any problem easily. Troubleshooting is a science by itself and finding out that the system too lean bank 1 problem exists makes this an easier issue to overcome. The EGR sensor and valve regulate the flow of exhaust from the combustion chamber back into the fuel injection system. If the fuel filter is clogged, you basically will be left with little or no fuel in the fuel line that goes from the filter to the engine. Many, if not most, shops will apply this diagnosis fee to any required repairs if you have them perform the repairs for you. When your powertrain control module monitors a lean condition in Bank 1, it triggers the diagnostic trouble code (DTC) P0171. Ignition Lock Cylinder Replacement Cost: 2023 Price Comparison, Rear Bumper Replacement Cost: 2023 Price Comparison, Oil Pan Gasket Replacement Cost: 2023 Price Comparison, How Much Does The System Too Lean Bank 1 Repair Cost? Usually, replacing the oxygen sensor is the 2nd common method to fix the P0171 code. The P0171 code is linked to your car having clogged fuel injectors, implying the engine controller is sensing a lean state. 8 Best Catalytic Converter Cleaners of 2023, P0456 Code What It Means and How To Fix It, P0496 Code Meaning, Causes, Symptoms (& How To Fix), P0300 Code Meaning, Causes, Symptoms (& How to Fix it), P0442 Code What It Means and How To Fix It, P0455 Code What It Means and How To Fix It, P2181 Code Meaning, Causes, Symptoms (& How To Fix), P0700 Code - What It Means and How To Fix It, P0106 Code Meaning, Causes, Symptoms (& How To Fix), P0012 Code Meaning, Causes, Symptoms (& How To Fix), Electric Parking Brake Problems Causes & Fixes, Oil Coming Out Of Exhaust Causes & Fixes, 10 Symptoms Of A Bad Fuel Pump & Replacement Cost, Air intake/vacuum/boost pipe leak (Most common), Low fuel pressure (Caused by a bad fuel pump, filter, or, Replace faulty vacuum hoses or gaskets around the intake, Replace the fuel pump/fuel filter/fuel pressure regulator or repair wiring, Check the fuel pressure.