Codes P0171 & P0174 HELP
I need help with my 2001 Ford F150 XLT SuperCrew, my check engine light came on beginning of march, codes are P0171 & P 0174- My dad & I changed all vacuum lines, Changed the PCV valve and it is still giving me these stupid codes. it also is now starting to act like it is on a carburetor instead of fuel injector. when i turn it over it acts like i need to give it gas, goes real low catches then revs up real high about 30 second later stabilizes. i have replaced my fuel pump twice and each time i had to i was driving and just lost all acceleration but still ran. I replaced my fuel filter 5 months ago, my spark plug and wires about 2 years ago. its driving me bonkers, any suggestions?