legacycentral bbs

You don't need to cut the stock O2 wire, you just need to strip the insulation and tap the narrow band output from the wideband controller to the stock O2 sensor wire.

That way you could put the stock narrow band back in if you wanted.

Hey Josh, I know you have changed quite a lot since you first put in this wideband, but I am wondering how the oxygen sensor performed in the CES downpipe bung. I am thinking about accuracy and heat.

The SS I recently acquired had an Invidia downpipe with no bung in it. So, the Zeitronix wideband sensor was plugged in to the next section of exhaust after the downpipe.

I will be installing my CES exahaust, which only has the bung at the mouth of the DP. Because of the divorced nature of the CES downpipe, I can't help but wonder if it is problematic to have the sensor at a place that is bypassed by some of the air. (I don't know if this makes any difference).

Also, because it is so close to the turbo, is there a risk of the sensor burning out prematurely if it is at the top of the downpipe?

Because the exhaust is all stainless, I would need to get any additional bung installs done professionally.

I just recently replaced the sensor because it went full lean for a little while and reading leaner than normal. After talking with Zeitronix they said the sensors will tend to do that when they start getting old/worn. So I got about 5-6 years out of the sensor....albeit not a lot of driving miles.

You should be ok in that location. The sensor is in the main exhaust tube. The fact the wastegate gasses are bypassed shouldn't be an issue.