3.7L liberty not starting after fixing PS fluid leak

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grumpy_gladys02

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Hopefully this is appropriate to post here, but:

I’m at a loss; my jeep was running fine until I decided to fix a worsening PS fluid leak. It sat for a week as I was waiting for the pump and reservoir to arrive; hoses arrived from a different warehouse from the pump and reservoir. Anyways, as I finished piecing the PS components back together with my uncle, topped it off with fluid, and took it for a test drive around the block, I noticed the security light come on and after the engine dies.

The anti-theft system is on; scouring the internet, my uncle and I figure it may be a bad pcm and skim— we’ve since installed a new pcm that was flashed for a skim delete, removed the skim, and installed the new PCM. In theory, it should run fine, right? The fuel pump is active when you put the key in the start position without cranking, but the jeep will still either crank and not start or start and run before cutting off after running for a minute or so. Fuses are fine. We don’t know what else to do

Further ideas would be greatly appreciated, thanks in advanced
 

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