Blanking off EGR valve(s)

[mexicorich]

What old nail tricK?

 

[cheshire cat]

remove pipe (top one) from egr insert small nail head first into pipe(rubber), leave 1/8" sticking out for removal if necc' push pipe back on , no need to turn down with vag com

 

[Leigh15]

i think if it produced nitrogen oxide (nos) they would try and recirculate that back into the system will go like made then!

You're thinking of nitrous oxide (n2O) which is not the same as nitrogen oxide (nO) or nitrogen dioxide (NO2) which are both produced as a waste product in internal combustion engine.

NOx is a general term used to cover all nitrogen oxides ie. NO, N2O, NO2 etc