ok so a buddy of mine has a 2002. auto tranny rebuilt 2 times. thats a different story though, but may have something to do with low power.
before he fixed his tranny someone told him he was having ip problems, dont think his o/d was working so the low power made him assume fuel. he fixed his tranny and everything went good. the o/d went out and now on another rebuild. but he said when he starts the truck it feels like it has no power until everything warms up then it starts working. this time his tranny is working fine.
does anyone know where to start? he thinks it may be the ecm or ip.

any help is appreciated

thanks david!