View Full Version : 96 z71 drivability problems


redneckchevz71
06-13-2007, 08:00 PM
here is what i have done to my truck.

new cam...comp roller 264 duration
jet stage 2 chip
summit digital ignition box
acdelco mpfi conversion injectors

here is my problem.went to get the timing set today and was unable to set the timing due to a P0340 code (cam position failure).replaced cam sensor and got rid of that.had timing set to -2 which is within specs.now i got codes poping up all over the place mass air, multiple cylinder missfire , crank sensor , O2 sensors , cam sensor (AGAIN).could it be that i have to have the computer programmed for the upgrades i have done ,which summit tech told me the jet stage 2 should do it.now i'm stuck with a truck that runs rough and dont know what is causing it.any help will greatly be appreciated.

383 silverado
06-14-2007, 12:34 AM
what are the cam specs ?

http://fuelairspark.com/Products/det...ammer/over.asp

. By simply selecting one of three built-in camshaft settings, you can instantly optimize your engine tune to make maximum horsepower using performance camshafts ground with up to 230° of .050” duration!

Custom Cam Selection Duration @ .50”(112-114 lobe separation)

Cam A 200-210

Cam B 210-220

Cam C 220-230