I have a 2001 Dakota QC 2WD 4.7L. getting P0207 and P0307 codes. #7 injector driver and misfire codes. new injector in #7. Also PCM was sent out to be rebuilt because it looked like computer was holding ground signal to #7 on all the time. still happening. runs rough. stalls. smokes alot. wiring to #7 is not shorted to ground.