Bad 02 sensor,do I need 2?
Thread Starter
|
Registered User
Joined: Jul 2006
Posts: 17
Likes: 0
Bad 02 sensor,do I need 2?
My truck threw a code. Sensor 2 in bank 1 is bad. Do I need to replace both in bank 1 or just one? They said it was after the cat. Does that sound right? Is that downstream or upstream? What tools will I need to borrow to change these out?
Record Breaker
Joined: Jan 2007
Posts: 2,451
Likes: 0
From: CA
RE: Bad 02 sensor,do I need 2?
Sensor 2 bank1 is the driver side post cat o2, so it's downstream from the cat. A open-end wrench will do the trick...and you just need to replace the post cat o2. All the post cat o2 do is monitor cat efficiency so you could also put a 02 sim in depending on your local smog laws.
If it was me i'd swap the driver side o2 with the passenger side...if the code switches to the other side then it's the o2 for sure.
If it was me i'd swap the driver side o2 with the passenger side...if the code switches to the other side then it's the o2 for sure.
Thread Starter
|
Registered User
Joined: Jul 2006
Posts: 17
Likes: 0
RE: Bad 02 sensor,do I need 2?
ORIGINAL: SeVeReDiStOrTiOn
Sensor 2 bank1 is the driver side post cat o2, so it's downstream from the cat. A open-end wrench will do the trick...and you just need to replace the post cat o2. All the post cat o2 do is monitor cat efficiency so you could also put a 02 sim in depending on your local smog laws.
If it was me i'd swap the driver side o2 with the passenger side...if the code switches to the other side then it's the o2 for sure.
Sensor 2 bank1 is the driver side post cat o2, so it's downstream from the cat. A open-end wrench will do the trick...and you just need to replace the post cat o2. All the post cat o2 do is monitor cat efficiency so you could also put a 02 sim in depending on your local smog laws.
If it was me i'd swap the driver side o2 with the passenger side...if the code switches to the other side then it's the o2 for sure.