2000 monte ss with 120k miles on her. shes been serviced and i always do early maintains on her and check my fluids daily ect. last thing i did to it was about 2 months ago now 1000 miles ago, i got zzp 10.5mm wires ngk colder plugs (recommended for sc applications) changed the oil with full synthetic mobile one 10w 30, stp filter, flushed my radiator, and got a new pod filter. yes my plugs were gapped correctly, yes i have all the right wire going to the right coils, yes they are all on checked today. anyways on my way to a carshow about 20 mins away or less, my car was acting up. seamed like a misfire got the codes read and it said multiple and random misfires p0300. i checked the Plug<wire<coil read it again and it said p0306 cyl 6 misfire. so i got one new plug for cyl 6 still threw the code. so tonight i got off work, came home no problems left 5 mins later got down the road and it died in the street. tried to start it....nothing. read for codes....nothing. after pushing it home, i swaped the ignition modules off my 03 impala. nothing....still would spark but wouldnt turn over. so now ive checked plugs<wires<coils<module. im lost dont know where to turn next. has full tank of gas and oil and coolant levels are good. the cat is not clogged. i dont think it is the injectors because everytime i fill up i run 2 bottle of *** out with it. someone help me. im kinda sol because my monte is my daily driver.

 

Don't you have a thread on this already? If spark is good then check fueling. (Fuel pump, fuel filter, fuel injectors) just because you run a injector cleaner doesn't mean it's not the issue.

I would post the new info in your original thread so the subscribed members can see you replied and can further assist.

 

Possible crank sensor issue