p59 dbw idles but doesnt want to accelerate

[ryan_axberg]

I have had this truck for a year or two and decided to put a cam and turbo it and I got it to idle, but doesn't want to start very good. And when I give it some gas it doesn't want to accelerate and it makes a pretty loud hissing sound. I have checked for vacuum leaks, still using the stock dbw throttle body. I put the stock 1 bar map sensor back in it for now and the stock values to try to rule out the map sensor. I have tuned different vehicles before, but they have all been dbc throttle bodies. Can anyone tell what is going on with it? thanks

[5FDP]

Speed density needs the MAF dtc's on MIL on first error.

Have you made sure you are not sucking a silicone coupler completely closed?

[ryan_axberg]

oh yea, that sound familiar. I will do that and try it again. I just have an exposed throttle body right now, don't even have any charge pipes run yet. I will log my wideband next time also. thanks