Re: I Love My EGR!!
I am not 100% sure on the workings of the 5.7 with variable valve timing, but typically one of the things that can be accomplished with variable valve timing is the function of an egr valve. All that an egr valve does is get inert gas into the combustion chamber during the intake stroke, and this can be accomplished by adjusting when the exhaust valve opens and closes to allow exhaust to be drawn back into the cylinder.
2005 Jeep Grand Cherokee - Gone but not forgotten!