Quote Originally Posted by quicksand500 View Post
Why do we need to fit EGR blanking plates on the ZD30DDTI when the recirc system has a butterfly to begin with? Cant we just remove the vacuum from the solenoid to that?
Two totally separate things mate. The intake has two butterflies. One to assist in engine shut down and the other acts like a choke when the engine is cold or at low rpm. This one some people will remove the vac pipe to it so it stays open believing it there is better performance to be had but there isn’t really.
These has nothing to do with the egr system.


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