P0171...I hate this code

[richtazz]

Originally Posted by Anthony MPM

make sure you are checking everything while the engine is at operating temperature in case something is expanding with the heat and also check the exhaust on that bank, an exhaust leak before the O2 sensor will cause that code. I doubt it is the fuel pump, your only getting 1 lean code for bank 1.

Just for clarification, there is no bank-1/bank-2 on this particular vehicle. These cars only have 1 pre-cat and 1 post-cat oxygen sensor, and the PCM doesn't monitor each bank separately.