I wasn't sure where to put this thread but can anyone tell me how many O2 sensors the 06 350 has? Because Im about to throw a check engine light after I put in my exhaust and test pipes, so can anyone tell me how they got rid of it or how could i get rid of it? thanks

 

I unplugged the battery for about 10-15 mins and my check engine light went away .

 

I heard that was not so good for the car?

 

your car has 4 o2 sensors:

2 before the cats, and 2 after the cats (one on each side)

For the answer to your question about test pipes and check engine light, please read the appropriate section of the top 100 questions thread. (Link in my signature)