Yesterday my dad drove my truck and it started acting up...It has no power, idles very rough and smokes alot more than usuall... I have tried a set of stock injectors that I am 100 % positive are good. I have also tried a new rail pressure sensor...whats next? I have a FP guage and have good fuel pressure.... I have removed my box thinkiing there may be a issue there.... Could this be a bad CP3? The local fair pull is tommarow and i was planning on pulling.... Please help me... I also checked all connectors to make sure they had good conncections

 

Fuel filter?

 

Already checked that

 

check your crank and cam sensor. when you check your crank sensor inspect the tone ring for damage or cracks.