Need help or ideas of what could be wrong! I've got a 2001 Zo6 that i just installed the lmc5 module on. I called the help number and her said that it not being able to start wouldn't involve the column lock as in it wouldn't stop me from starting it in neutral and it won't/will start its very intermittent and when it won't start but it'll crank. I've gone and got a new battery and cleaned the ignition switch and the ground closest to the battery (G104) I'm pretty sure the TDR is good. The weird thing is that it starts and runs once and awhile. It may be vats but also that fact that the pull key and wait 10 sec and service column lock is still coming up after installing the module. A few days ago when I didn't install the new battery yet it started up and I took it around and drove it I got all the way home was just about to park it and the reduced engine message popped up. I pulled all my codes and nothing looks super crazy but ill post them if anyone is interested.

PCM - P0300 C H - Most likely cause of the cam
TCS - C1226 H, C1233 H C, C1283 H, C1287 H, U1000 H, U1016 H
BCM - B0507 H, B2587 H, B2592 H, B2723 H, U1016 H
SDM - U1016,40,96 all H
IPC - NO CODES
RADIO - NO CODES
HVAC - NO CODES
LDCM - B2282 H, B2284 H, U1064 H, U1096 H
RDCM - B2283 H, B2285 H, B2263 H, B2265 H, U1064 H, U1096 H.
SCM - NO COMM
RFA - U1000 H, U1016 H

 

Just to clarify, the car cranks over each and every time you try to start it, correct? Can you hear the fuel pump turn on for 2 secounds when you turn the key to on? You may have to install a fuel pressure gauge to verify you have about 60 psi at the fuel rails

 

yes sir it cranks each time and I can hear the fuel pump everytime. But I may check its pressure like you said.