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Thread: Torque reduction due to exhaust temperature 1

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  1. Torque reduction due to exhaust temperature 1 
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    Hi,

    Having problems with my A6 C7 CNHA with no boost. No fault codes. Loads of black smoke out of the exhaust when you’d expect it to be on boost. Checked EGR valves, turbo, turbo actuator etc.

    Had a Exhaust Bank 1 S1 Short to Ground code last week which set glow plug light flashing. Reset, not reoccurred.

    Just noticed same sensor is only reading 40c whereas next one is 300, next 280 and next 240. I’d expect S1 to be the hottest.

    Also noticed in measuring values that ‘torque reduction due to exhaust temperature’ has a value of ‘1’ next to it. Does that mean it’s active?

    If so, do we reckon the under reading sensors could be the cause?

    Thanks
    Last edited by orion1210; 09-09-2021 at 09:23 PM.
     
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  2. Re: Torque reduction due to exhaust temperature 1 
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    During a forced regen I have seen sensor 4 reading 900 degrees c... I would replace sensor one and see what happens.
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
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  3. Re: Torque reduction due to exhaust temperature 1 
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    I’ll replace the sensor but does anybody know what this torque reduction thing normally reads on a good engine?
     
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