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Author Topic: 02 sensor extensions for De cat exhaust.  (Read 656 times)

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02 sensor extensions for De cat exhaust.
« on: October 28, 2021, 11:08:06 am »
Anyone used the 02 sensor extensions that are supposed to stop the EML coming on after fitting a De cat downpipe??
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Re: 02 sensor extensions for De cat exhaust.
« Reply #1 on: October 28, 2021, 01:35:48 pm »
If you use one, make sure it goes on the secondary O2 under the car, not the one next to the turbo.

Most remappers disable the secondary O2 in the ECU software.  What map do you have?

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2007 ED30 | 2009 TDI 140 | 2016 BMW 330D

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Re: 02 sensor extensions for De cat exhaust.
« Reply #2 on: October 28, 2021, 01:45:47 pm »
Not had it mapped yet, but will be mapped next year just wanted to fit the down pipe to see how it performed/sounded but dont want the EML on.
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Re: 02 sensor extensions for De cat exhaust.
« Reply #3 on: October 28, 2021, 01:50:40 pm »
In that case you'll be wanting something like this, but ebay is half the price - https://www.awesomegti.com/shop-by-car/volkswagen/golf-mk4/cts-cel-eliminator-o2-sensor-spacer/
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2007 ED30 | 2009 TDI 140 | 2016 BMW 330D

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Re: 02 sensor extensions for De cat exhaust.
« Reply #4 on: October 28, 2021, 04:33:52 pm »
Thanks, just ordered it, see what happens.
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