2004 Ford f150 p0174 Source Source Source Source Source Source Source Source Source Source Read Also: 2004 Ford f150 p0174 code 2004 Ford p0174 2004 Ford taurus p0171 p0174 Ford f150 obd code p0174 2004 Ford expedition p0171 and p0174 P0174 system too lean bank 2 ford f150