Mastering Vehicle Health P0170 Fuel Trim Malfunction Explained

A lot of people have had issues with these codes pointing to forgetting the secondary air pump hose on the front of the airbox. 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 engine code seems to relate to a plausability failure. There are several subtypes listed in the manual, but they all relate to exhaust leak ... P0170 Fault ... Anyone on here pull a P0170 code? (Bank 1 Fuel Trim Fault) Looking for some guidance on how to proceed. This code can be very difficult to resolve, and have many possible sources. The greater danger for most of us lies not in setting our aim too high and falling ... First off I have a 04 330ci. I get one and only fault code: P0170 Fuel Trim Malfunction (Bank 1). My car has 66k miles. Interestingly, I was ... 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 ... Inconsistent lean condition help P0133 & P0170 · A faulty O2 Sensor · A leaking exhaust manifold · An engine vacuum leak · An open or short in ... P0170 means there was a malfunction in the computer's control of the air:fuel ratio. It also indicates that the fuel trims reached their limit of adding fuel. You are running outside optimal fuel trim. There is a probably an air leak somewhere in your intake system (MAF, vacuum leak, o2 sensor not ...