2001 BMW X5 Q&A

2001 BMW X5 Question: What are codes p0171, p0174 and p0455?

My X5' didn't pass emissions. Got error codes p0171, p0174 and p0455. What are they? -
Answer 1
THE P0171 AND P0174 ARE FOR THE FUEL INJECTION THE COMPUTER THINKS THE FUEL MIXTURE IS WAY OUT OF SPEC. THIS WILL REQUIRE DIAGNOSTICS TO CONFIRM A REPAIR STRATEGY. THE P0455 IS A FUEL VAPOR RECOVERY FAULT. MOST LIKELY CAUSE IS THE GAS CAP LOOSE OR FAULTY. -