Unveiling the Secrets of Engine Code P0171 Fuel System Diagnostics

The DTC indicates that the oxygen sensor on the first cylinder bank has detected lean engine conditions. This means that there is too much air or not enough ... code issue is lean condition bank 1 I replaced PCV valve and hose. I cleaned MAP sensor. I installed a hose clamp on passenger side vacuum ... What Does Code P0171 Mean? The P0171 is a diagnostic trouble code (DTC) that means, on the first bank of the engine, the fuel system is running weak or a vacuum ... Engine code p0171 = System too Lean (Bank 1) · The MAF (Mass Air Flow) Sensor is dirty or faulty. There is an issue with some Vehicles where the ... The check engine code was P0171, a lean fuel trim. He cleared the code and checked for air leaks and said the car needed a new PCV valve and he installed one. Shop for New Auto Parts at 1AAuto.com http://1aau.to/c/433/k/scan-tools-code-readers Your check engine light is on, and you got the code ... It came up "P0171 Bank 1 SysToo Lean" and the technician explained to me that I had a vacuum leak somewhere. The P0171 trouble code indicates that your vehicle's engine runs too lean on bank 1. This means the air-fuel mixture contains too much air and not enough fuel. The surging rpms sound like the plastic hose from the intake to the turbo has a vacuum leak. Check both ends for fitness and take a good look at the hose. PCM & Fuel Systems - Engine Code P0171 - #P0171- According to the book it means System adaptive feul too lean (bank 1) .