bigthumper

well i had a P0237 wich was the map sensor, so i replaced it and drove the truck for a couple of days to see if it would rest itself, wel it didn't so i went today and had a friend scan it and it came up with the same code, well he tried to erase it but it just kept comeing back... the truck would run like crap still then it would run like a bat out of h$ll.. and now it runs great but the light is still on.. what should i do.. the part came from cummins and seems to be fine.. do i need to go to dodge or cummins and have them try to clear it or what? or do you guys think my comp box is going bad and sending the wrong signal to the map or ecu?

thanks for any info


shelby