Environmental psychology addresses environmental problems such as density and crowding, noise pollution, sub-standard living, and urban decay. 1  Noise increases environmental stress.
Hayapower is correct. The tube from the converter is for the smog pump (air injection) for the catalytic converter. The EGR tube comes off the passenger side exhaust manifold. Disconnecting the tube from the converter will not hurt if you remove the conveter and close off the tube end or leave it open.If you leave it open then at times you will hear a pumping sound from the tube caused by the smog pump when it reaches proper temperature.t's thermactor/secondary fresh air injected from the smog air pump for converter/catalyst secondary burn/conversion.. Disabling/restricting an EGR flow (drastically), can/will result in a DTC.. The tube is needed for a fresh air suppy to the converter..
I've done a lot of this works at my shop, sometimes, even with sand blaster takes a lot of time to proper clean an clogged intake manifold and egr, so, the poor little spray it's a waste of money and time, most of your spray will sit on the bottom of the intercooler and remain than, no cleaning at all.ery bad ideia on a turbocharged car(but works on natural aspirated cars!), could damage the turbo compressor wheel, the best way and safe way to clean, is revove the egr, remove the intake manifold, and clean it by hand with a very aggressive cleaner(believe me, you will need that in some cases lol).