Car hesitates under light throttle & feels slightly flat at low rpm,under live data in the workshop i can get egr to almost go up & down mirroring the throttle movement?
i didnt think requirements for egr would have been met stationary?removed actuator to road test & with egr closed car runs perfect air mass is increased & no hesitation
so my question is what would cause ecu to act in this way , tests carried out so far
scoped rail pressure good
scoped map once again normal
dpf pressure sensor ig on eng off .47v, idle.55v,3000rpm .92v
soot loading 20%,is this high!, partial blockage?
havnt tried regen just yet!
not sure where to go next
any ideas would be appreciated keith