how do you test a fuel injectior to see if it is bad? I have been showing codes 174 and 171 and have already replaced all oxgen sensors and mass air flow sensor, but truck is still idleing rough and stalls out . its not getting enough fuel i guess because its running lean on bank 1 and 2 .how can i fix this please !!!
Oct 14, 2009 at 6:48 PM
