I have a 99 SR5. Does anyone know how to reset the computer without having a diagnostic computer to plug in to the car?

im not real sure man but i think if u pull the hot terminal off for about 3 to 5 min it should reset itself. but you may want to get a second opinionon that

this reply may be a little late but all you have to do is pop the hood and in the front right hand side is a black fuse box.Just pull the 15 amp fuse for the EFI for 15 seconds and plug it back in.

but if the CEL came on, it did so for a reason, and it should be checked out...ignoring it may cause future, more severe problems.