Could an old crank/cam sensor not trip a code but give a faulty reading?? I have been having issues with my truck, it looks like it only allows 10* of timing or so, no codes, had a GM tech go for a ride with me and live plot the MAF the MAP and fuel rail pressure, everything is right on, he said that he would change the crank and cam sensors to see if that helps. Anyone have issues with either of these and not get a code??? Truck runs fine just has no power, I have logged it with my EFI and a TECH II both show very low timing when accelerating is there anything else that will pull the timing???
