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Starting Issue-Possible Column lock or Fuel Cut

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Old Apr 25, 2022 | 03:17 PM
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D.Rogers
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From: Niceville FL
Default Starting Issue-Possible Column lock or Fuel Cut

A little background:
2005 Z51
A&A Supercharger
Boost a Pump module in driver's fender well (possibly additional/aftermarket fuel pumps as I bought the car built)
LS9 cam
Aftermarket fuel rails with return
Snake eater 1000 injectors
MAF is disconnected and tuned on a straight map

Car sat for two weeks and I didn't have it on a charger so when I tried to start it, the battery was low. It tried to start but really stumbled and after a couple of attempts and barely running, I got the "Service Column Lock" message. Charging the battery to full didn't help and I could tell the security issues had kicked in and there was no dial sweep on the cluster when trying to start. It ran perfectly prior to this.

I ordered and installed the bypass and I've ensured the column isn't locked, There are no trouble codes and nothing on the display showing any issues but it still won't start.
If I pull the intake tube and spray starting fluid, it will start and briefly run so I know it's not electrical which leads me to a fuel issue. I checked the fuel pump fuse and relay and they are both good. I haven't gotten into the inner fender to check the power at the boost a pump, nor do I know exactly where it's pulling power from yet to search for a fuse. I do have a pressure gauge under the hood but it doesn't seem to be building any pressure while trying to start.

Before I start tearing into that fender, is it possible to determine if the security is still causing a fuel cut with a better scanner like a Tech II or HP tuners? I am aware of the TSB to bypass the security module all together and I will happily have that done if necessary but I don't particularly want the dealer messing with it and since it isn't running, I will have to have it towed to anyplace that can look at it.

I'm over it sitting in the garage so if you know of anyone in Northwest Florida (Panhandle area) that can help or works on this that can reliably assist me, I'll have it towed tomorrow. If you want to come to my house to help, that's even better. Time is money and I'm more than willing to pay for assistance.

TIA for any and all help.

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