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Hi,

What is the impact of NOx sensor to fuel consumption (TDI)?

Is this only about exhaust and DEF (AdBlue) or those sensors have impact on how much diesel is burned as well?

Thanks!!!
 

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The tuning of the TDI 3.0 is a compromise between passing EPA emissions regulations and fuel economy and power.

If there were NO emissions equipment required, the 3.0 TDI would get better fuel economy and more power from the same amount of fuel.

Essentially, the emissions regulations (catalyst, tuning, AdBlue) make the engines use more fuel.
 
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