Fuel Trim Malfunction (P0170) Unmasking the Causes and Empowering You with Solutions

My 97 lude is throwing P0172 that reads "System running rich" and P0170 reads"fuel trim malfuntion". What does those codes mean? How can i fix it? The ODBII code P0170 indicates that there is a malfunction in the fuel trim system for Bank 1, which means the engine control module (ECM) is having. That code is set when the ecu needs to adapt long term fuel trims more than 25%+. You still have some kind of vacuum leak check the brake ... It reads like the engine is overfuelling, how old is the car ? it's recommended to replace the oxygen (lambda) sensors every ten years or so. It showed codes: P0170, P0111 and a code for the volumetric air flow (dont remember the code). Cleared them, P0170 came afterwards. I got a ... Minivan, SUV, & Truck - P0170: Fuel trim malfuction (bank 1), P0172: System too rich (bank 1) - My Odyssey (2001) is running rough, ... The fault code P0170 can be caused by parts like the fuel filter, fuel pressure regulator or the air mass meter. The adaptive values in the ECU are adjusted so ... Running rich ... But not really p0170 and p0172 · 1) Fuel pressure too high · 2) O2 sensor stuck rich (above 450mV) It should cycle between 100 ... A fuel trim malfunction indicates that the FI system cannot fully compensate for either a rich or lean condition. ANY ONE HAD THIS CODE ON THEIR BMW Z3 1.9 (2000) THINK IT MEANS FAULT IN FUEL TRIM (BANK 1) HAVE CHANGED THE FUEL FILLTER BUT STILL GET THE ...