were is p0171 and p0704 located on 2004 f150 4.6 ford

Question

know it wasn't asked. mine was a 2004 f150 4.6 I wanted to know were p0171 an p0174 is located. my OBD 2 is saying bank 1 an 2 isn't working right.

Answer 1

Hi there,

These codes aren't for specific sensors. These codes are for a lean fuel mixture on bank 1 and bank 2. These codes are caused when the fuel mixture isn't right on the engine. This is usually caused by low fuel pressure or a bad mass air flow sensor.