Hi all, I'm Sheriff John and I'm marrying into a 1999 4-runner. I'm very pleased! Now only 4 months until my wedding day, I'm finding myself trying to figure out fault codes. Hmmm....but this place is great.

I've found a thread that some one has the same fault codes that I am getting. P0125, P1130, P1135. so it tells me that it's my A/F sensor at Bank 1, Sensor 1.
Now the only problem right now is...Where is Bank 1, Sensor 1 on a 1999 4-runner?
Thanks for the help.
SJ