02 Head Gaskets replaced - now not running

I had the head gaskets replaced at a local shop and they had it running after reassembly then it would not start the next time they went to start it. They replaced the PCM saying there was no pulse width to the injectors and it ran for a day after that repair. This morning I went to start the van and it turned over almost caught but then died it engine turns over but not start.
Anyone have any ideas on what this could possibly be is it related to the HG replacement/ bad ground/wiring ?

Really sounds like its related to the quality of the work that was done on the engine. No reason at all the pcm would fail after a head job. And no reason at all it should fail again! Sounds like they may have been a little rough putting it all back together.

I expected as much, it was towed back to the shop as they should fix it as the van never had any problems until the head job, but when it arrived it ran fine for them. The last thing I want is for it to die on the Highway while driving. Just don't know what to start with if its not acting up while they have it they don't know were to start.

sounds like they didn't get something back together right.i don't see why there should have been a pcm problem unless the hooked something up wrong and caused the pcm to fail.i don't think after they figure it out ,i would use that shop again unless the thing acts up related to the h/g repacement. alot of stuff has to come off and go back on to get down to the headgaskets