Exhaust Heat Recirculation. The key to exhaust heat recirculation is a device called an exhaust gas recirculation (EGR) valve. The EGR valve opens when it encounters back pressure from the car's exhaust and channels it back into the combustion chamber.You might wonder what good this does, since the air in the chamber is mixed with gasoline to make it combustible.Well, one thing it does is to make the fuel warmer.xhaust Heat Recirculation. The key to exhaust heat recirculation is a device called an exhaust gas recirculation (EGR) valve. The EGR valve opens when it encounters back pressure from the car's exhaust and channels it back into the combustion chamber.
Fagrifoss is a waterfall on the way to laki route is very rough and rugged. There are at least two river crossings to get there. 4Ã4 vehicles only. The 25 km long crater row called Lakagigar was created during a relatively short, intensive, and catastrophic eruption between the 8th of June 1783 and February 1874.
SkÃ³gafoss waterfall. The next waterfall is SkÃ³gafoss, which is 30 kilometres away from Seljalandsfoss, just off the ring-road 1. It is breathtakingly beautiful and has always been amongst my most favourite waterfalls, since I first visited it as a child with my parents.