I recently helped a friend do a 411 pcm swap on a gen 1 vortec v8 swapped s10 blazer. The issue is that it starts only every other cranking cycle. The vats is on and relinked but it did the exact same thing with the vats off. I don't know where to look to solve this. The truck starts fine the second crank cycle every time so its more of an annoyacne that we want solved.