Downstream o2 sensor

Reply Subscribe

Thread Tools

Search this Thread

Jul 19, 2011, 05:12 PM

svt_lightning01

Evolved Member

Thread Starter

iTrader: (1)

Join Date: Jan 2011

Location: Kentucky

Posts: 727

Likes: 0

Received 0 Likes on 0 Posts

Downstream o2 sensor

I'm getting a tune next week at Mellon Tuning. This may end up being a stupid question but my rear o2 sensor looks like whoever had the car before didn't use enough exhaust hangers and it has burred one of the wires off the sensor and it throw a CEL. Will this effect anything other than MPG?

Reply Like

Jul 19, 2011, 06:05 PM

4g63Moon

Evolving Member

iTrader: (9)

Join Date: Jun 2010

Location: AZ

Posts: 358

Likes: 0

Received 0 Likes on 0 Posts

i would get a new one cus ur downstream o2 should read steady flow after the upstream reads up and down. Do you have a wideband for the tune?

Reply Like

Jul 19, 2011, 06:05 PM

Mellon Racing

Account Disabled

iTrader: (38)

Join Date: Aug 2005

Location: Virginia Beach, Virginia

Posts: 9,319

Likes: 0

Received 1 Like on 1 Post

it will not pose a problem other than throwing a check engine light.

Reply Like

Jul 19, 2011, 09:22 PM

svt_lightning01

Evolved Member

Thread Starter

iTrader: (1)

Join Date: Jan 2011

Location: Kentucky

Posts: 727

Likes: 0

Received 0 Likes on 0 Posts

Okay great thanks chris! Yes i have a wide band i have never been under the guy until i lifted it to change the oil i found a half dollar sized hole in the exhaust right before the muffler and a cute rear o2. I fixed the hole with a welder and paused on the o2. I should be good to go then.

Reply Like