HACK BLOCK
Full Access Member
i'm trying to get to the bottom of my super bad mpg (150-180 a tank) and p0171 and p0174 codes. at first i took it to a shop to be looked at and i was told i had 3 bad injectors and they wanted to charge me around $750 for 8 injectors and labor. but after changing my evap purge valve my check engine light went away and i figured they was trying to **** me over. i ended up buying an al619 scan tool to figure out why my abs light was on and noticed my LTFTs were super high between 18% and 25%. after some reading online i came to the conclusion that i have a fuel delivery problem. but something i did notice is that my LTFTs are less than 10% when cold and rise has the car gets closer to operating temps. i have not checked my plugs yet and what should i check before i start dumping money into it