96 3.8 Hard Starting/Rough Running Battery Light On

[jsimmoms]

I'm putting my van back on the road after sitting for 1yr and it is hard to start then once it starts it runs rough. Once it runs for a few minutes it will smooth out, but if I shut it off then restart it , it does the same thing. I replaced the fuel filter and checked the fuel pressure which looks strange. It is KOEO 20lbs which I know is low, but when I get it started it bounces from 25-35. I pulled the vacuum line off the regulator and it made no difference. Fuel pump bad? The other problem is with the battery light, when I was letting it run it would come on then go out. I got my meter out and started checking things and I have 14.3-6 when running, 12.3 when off. I charged the battery before I put it back in so I wouldn't kill the alternator. Any ideas. Thanks

[wiswind]

I would check and clean all the battery connections and verify good connection to the chasis.
Otherwise, you may need a new battery.
The battery light is an indication that a voltage is being sensed as too low, which only takes 1 poor connection, or defective battery, or defective alternator.

Low voltage will cause the engine to run rough, can cause fuel pump issues, etc.