So yesterday i took off my bully dog pmt, loaded my new smarty and put it on #4 90horse no timing. Took the truck for a quick boot to camp and back. Loved it, anyways because of where i am i couldnt go any faster then 80kmhr, so i didnt root on it like i wanted to. Today i drive to work, engine light comes on, check code and p0201 "Injector circuit/ open #1 cylinder" comes up. Parked truck at work cleared code. After this i went to drive away i suddenly had little power off the get go, truck started to shake and idle rough. But in park it doesnt seem to idle rough, only when i put it in drive and start going. took smarty down to stock and truck is still doing same thing. Any idea's, ive searched on all forums and really couldnt find a straight answer to problem. Im hoping its just a wire loose or grounding out. If not im sure its the injector. Does anyone have any Tricks or past experiences on this issue???


Chad...

 

remove valve cover and the wires off of #1 injector. ohm the injector. anything over 1.0 ohm is a bad injector. also ohm the harness for #1 from the injector harness to the plug outside of the valve cover.