Originally Posted by Alex zvh cabrio
Originally Posted by SafeChav
Pumps are the same mate.
If its struggling to idle then i can almost guarantee theres an air leak.
Brake servo's are prime suspects believe it or not

xr3i pump are different to an rs. xr3i only runs 2.5 bar static presurewhen an rst is 5 bar presure

what affect will this have on the running of the car?
could this cause a misfire?
cheers for the info