Originally Posted by
geezer101
So your EGR valve doesn't have an internal vacuum port? What about swapping the intake manifold for an earlier model G63B? The EGR valves on them are 80% cheaper. I know you are tied to Cali emissions so this might be a no-go for you. The only other option is hell dodgy but not impossible - pry the top off the valve and swa :thumbup:p the diaphragm from a more readily available unit. I see guys fix their own vac advance servos on historic UK vehicles so it could theoretically be done :shrug: