Apparently I didn't read your last post carefully enough.
The hard starting could be a number of things all hard to confirm without being there and testing things. One thing to eliminate is the ignition module. The V-6's don't have an ignition module. They have ignition coils that are controlled by the PCM.
If you are not getting an SES light coming on then you may want to get some mechanical things checked. Depending on the mileage the fuel filter could be getting plugged but that would tend to show more on high fuel demand conditions rather than starting. The fuel pressure would be a thing to check. If it is low or slow to build or there is not enoguh fuel delivery then the pump could be weak. Filter would be replaced before conedming the pump.
Once again depending on the mileage the spark plugs may be worth checking /replacing.
If I think of any thing more i will post it.