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After fuel economy problems and faultcode on inpa I***8217;ve had the following readings:

Exhaust gas temp. Upstream: 128 celcius
Exhaust gas temp after auxiliary egr cooler: -50 celcius
Exhaust temp after egr cooler: 57 celcius

Where is the auxiliary egr cooler (or low pressure egr cooler) and where is this sensor located???

Its a 2.0d N47 engine from a X3 F25

Thanks for youre reply!!!!
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