Quote Originally Posted by skeet View Post
more then likely allen deleted them if you asked him to, or if you told him you were not running the rear 02 sensors, i learned something about these just the other day when i bought a new harness, the bottom picture my harness has 4 of those plugs, which i later found out it was canadien made. the top picture those 02 sensors are used for the front, of a 99 as i have 2 of them practically new that i dont need anymore due to harness difference..if i had to guess for your moms vechicle it would be the top one.. if you need 2 of them i got 2 that i am not using ..
well yes i believe allen did delete the rear o2's but he said you have to have the front ones... so i am assuming i will just have to buy the one's in the bottom picture? because that's the only type of plugs i have to connect... the other ones simply dont exist...i just wanted to make sure it wouldnt hurt anything to use that type versus the other? whats the difference with them anyhow??? i did they change them to all 4 like yours at a certain year or something?