restoring 1989 b150 239 v6 all sensors ecm hall unit if cmputer is clear runs good but if it sits for awhile with battery coonected it goes into limp mode only pass side injector fires i have fuel pressure im lost on this one any ideas what is messing ecm up when it sits not running good times

 

No Idea... Sorry
May just stat by figuring out why the battery is going dead..... Good Luck...

 

I had a 95 pu that started having issues including the OD randomly not working and it was just time for a new battery.