Stumped
I have an 03 1500 with a 4.7. The problem I'm having is the truck will idle fine, but when you hit the accelerator it pops through the throttle body and runs very rough. I've replaced the plugs, crank and can sensor, map sensor and even put a new ECU in it. I took it to a shop and the only thing they could find was a broken wire on the #8 injector. Originally I had multiple engine codes. They've all cleared except P0172. I did buy some new injectors... oem this time. I was told by the shop the injectors could not be sealed and have a vacuum leak at some. Also could a plugged evap canister cause any of this. Any input would be appreciated.







