i am replacing the 2 o2 sensors after the cat, i can get to them fine but these things wont friggen budge i cant get them off for the life of me, any ideas on how to loosen these things up? i sprayed them with something to break it up and it did nothing (i forget what the product is called)

 

Why are you changing them if you dont mind me asking.

What type of wrench are yo trying to use?

 

i have 2 codes reading and they are for those two, im using a 7/8 wrench and then one of the 02 sensors wire broke off so i got a 7/8 socket on there and still nothing

 

What codes? Those O2s tell you if your cats are bad.

 

i had a post earlier with the codes i cant find it though, they said that those 2 were bad and the cats had a malfunction but i had this happen on another car i had and i replaced the 2 o2's and it fixed the problem