Edward Kaps
Steve
As Chris has mentioned NOX Cat and NOx sensor will have no effect on MOT emissions, as you know they don't measure NOx, look upstream for your problem--possible inlet valve coking??
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VW Golf 1.6 BAG 2004 - Problem with NOX sensor # - Steve Pearman December 16, 2016, 5:53 pm
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on December 19, 2016, 4:15 pm, in reply to "