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Well, I'm not sure what you mean by "program" the new PCM...BUT, with the "new" (junkyard) computer, we performed the procedure where you turn the key on for 10 min, then off for 5 sec, then repeat 2 more times (supposedly this resets the VTM and clears the DTC). Still nothing. No crank. Put the "old" (original) computer in and she'll crank all day, plenty of gas (noid light every injector and can smell it) and good spark (18-25kV on all cylinders). Compression on the front bank is 165-175 psi on all cylinders. It really seems like the system is out of time. If you crank briefly and let off it kinda backfires or tries to fire. What affects the timing? If it had a distributer I know what I'm doing. The crank doesn't even have a mark that we can view! We installed new crank sensor last night, no luck. Scan tool says that Cam sensor signal is present. Next step we may try a BCM and possibly a different PCM. I am stumped (and more than a little frustrated)!
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