truck running rough
well i have been chasing this problem for a couple weeks now. and the only codes left are
p01451, p0171 and p0174..the truck is still running rough at idle, stumbles on acceleration and has no power to keep highway speed...so everything that i have done has made things better but still not 100%
the p0171&4 are lean codes for bank one and two, the p1451 is evap system..this is what i have done so far...
two new O2 sensors
cut out cats
pull the manifold vacuum harness off to make sure they weren't plugged
tried a new gas cap
the lean codes will also cause a misfire in 3,4 and 8 cyclinder on hard acceleration.
my next step is to try a new DPFE sensor and a evap charcoal canister..maybe change fuel filter..
anyone else had this problem before..if so please chime in and let me know what fixed your problem..also my truck is a 98 4.6l 4x4 with 270km on it...thanks in advance....