2005 isx power/mpg problem

614962

{"text":"I have replaced turbo.egr valve,injectors egr cooler,new engine ecu, transmition worked on,new trany ecu and still having problems pulling small hills with 15k on the trailer.either with cruise control on or me driving it can't hold 10th gear and blowing black smoke. My mech said I have plenty of boost and fuel pressure.fuel economy use to be around 6.5 now around 5.6 to 5.8.cummins0 in atlanta had the trk for a month and gave up.the trk ran great until we blew the thr two exhaust manifold bolts.ever since then low mpg and black smoke.any ideas as to what we might be over looking. Have to much money to throw trk away thanks ahead for any help","pics":"[]","canComment":true}