If you take the engine cover off first and then follow the egr cooler back towards the bulkhead you will see a single plug that's on a alloy bend next to the bulk head ( really easy to get at ) and that's the exhaust back pressure sensor. There is 2 types of sensors one for a single turbo and another for a biturbo. The number for the biturbo sensor is-
A009 153 51 2c
001
81cp37-02
ad0001
20190812 cz4
Hope that makes sense
If you take the engine cover off first and then follow the egr cooler back towards the bulkhead you will see a single plug that's on a alloy bend next to the bulk head ( really easy to get at ) and that's the exhaust back pressure sensor. There is 2 types of sensors one for a single turbo and another for a biturbo. The number for the biturbo sensor is-
A009 153 51 2c
001
81cp37-02
ad0001
20190812 cz4
Hope that makes sense
