(rough start/idle, white smoke) i know why mine is running bad. passed a transport on the way home and got a soft code, engine light. went out and seemed to run ok the rest of the way home..but next day truck seemed to have some issues...rough start-up and idle and lots of white smoke....there was always a little on start up but never this much..truck is stock 02 f350 xl work truck (2wd super cab long box) 430,000 km (i know its high) i bought a diablosport predator u7170..put on 60 hp economy tune, ran fine except i think i was on the throttle too long, accelerated hard to pass a transport and another car in front of it......it was due for oil change too but wanted to diagnose a leak on top first..i think from the hpop... now it definitely needs new oil because it is a little low and dirty... any help is appreciated...should i change the oil before i even try to start it again? i am just really worried that i have damaged something... maybe i shouldn't have been so hard on it? ...could it be just an injector gone or the over-volatage caused some sensor to meltdown? am hoping its not engine damage... also where is the icp and how to disconnect to check it? also how to buzz test injectors..