99 rs HRC stg 2 and the car runs great except for sometimes it wont start because i seem to be getting no spark, changed the plugs, wires and coil, and still every once and a while the car wont start and wont spark, then after fiddling around with things, aka plugs n wires the car starts up and runs fine. i dont know wut it could be, i was thinking, crank sensor, ignition relay, ecu, engine ground? wut else could it be, i also have a viper alarm that hasnt been working lately either is there some way the alarm could be immobilizing the engine.???
TIA .......also this is not my car, its a friends that i help out with.


Mods:
CAI, OBX exhaust, Grillcraft grills, altezzas, ard ryver g6 17's wrapped w/ falken's, VIS racing c.f hood, 2 12" kicker comp's w/pioneer h.u, streetglow blue undercars, red dash kit, indiglo guages, n other shit

any1 have an idea???


Mods:
CAI, OBX exhaust, Grillcraft grills, altezzas, ard ryver g6 17's wrapped w/ falken's, VIS racing c.f hood, 2 12" kicker comp's w/pioneer h.u, streetglow blue undercars, red dash kit, indiglo guages, n other shit

Maybe a bad ASD relay?

---

2012 2500HD LML

Sounds like your having the same problem I'm having. But sometimes I can be driving down the road and my car will just die, outta the blue it will die. It will always crank back up but I can't find out what the problem. I have guessed all the same stuff you have but I also think it may be be due to fuel problems. If anyone has ever ran across this problem and fixed it please let me know.

Newbies learn the hard way!!!