Ecm-1 fuse issues

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Sean99c3500

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i have a 1999 c3500, 5.7 4l80e
I was messing around in the fuse box the other day and accidentally pulled the ecm-1 fuse and it shut the truck down. Ever since I haven’t been able to get the truck to start again. When I first crank it she tries to start but as soon as it does it dies again
Was looking into a few things and I know I’m getting spark to the plugs, and it will stay running on starting fluid.
It’s got a whole new spider injection system along with fuel pump and everything. I’m not sure what’s causing the injectors to not fire properly. I used a NOID light and as I crank it sends power fine but once it starts the injector pulse is very intermittent. Any ideas?
 

floater

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Have you disconnected the battery and let it reset everything? Sounds like the passlock system is shutting off your fuel pump. Can also try the passlock relearn. Google it.
 
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