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Discussion Starter #1
Hi guys
After the P0401 code has been gone for a while I suddenly got P040D today. Actual description
P040D EGR Temp Sensor A Circuit High
So then the question is: which of the sensors is causing this? As I can see there are several sensors, but do anyone of you know which sensor that triggers P040D code? I've tried resetting it, but it jumps right back, even if engine is cold.
There is no lack of power, no smoke from tailpipes.
 

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Discussion Starter #2
Just to follow up on this case for anyone who meet the same issue.
Bought the pierburg sensor, 7.08369.45.0, made my own "lambda" tool (grinding down one side of a 17mm pipe), got the old sensor out, it looked pretty clogged, and installed the new one.
Cleared DTC and problem solved :)
 

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