codes 25 and 42

Godspeed

88 supra turbo 5spd
May 13, 2005
1,119
0
0
42
Asheville n.c.
ok my 1g is throwing codes 25 and 42 and i know that code 25 is air fuel ratio lean malfunction how is this corrected? and 42 is vehicle speed sensor what the heck is that? and how do you fix it?
 

Godspeed

88 supra turbo 5spd
May 13, 2005
1,119
0
0
42
Asheville n.c.
bump anyone im giving my pc back tommorow and it will be a little whils before i go buy my new one. i need some help with this.