How do you reset computer on 91 Dodge Ram Van B250? trying to turn off Matience

all data says the light comes on at 60k then 82k then 120k at 60k &120k your suppose to rpl or clean egr valve and at 82k repl 02 sensor then connect a diag read out box to reset maint light. sounds like you need to see a mech with these capibilities. hope this helps

Thank you I do know that it comes on at certain millage and I think it is about replacing o2 senser I have one to replace it with I am just not sure how to turn off light once part is replaced or will it shut itself off after part is replaced??

it has to be turned off with a DIAG READ OUT BOX. call around and see who can reset it for you

Thank you for your help I will do that..