I installed a 1 inch spacer under the throttle,body and while I had it off I removed the EGR valve and cleaned it and put a new gasket on. Afterwards the surging stopped. Must have been a vacume leak at egr or throttle body gasket.
I installed a 1 inch spacer under the throttle,body and while I had it off I removed the EGR valve and cleaned it and put a new gasket on. Afterwards the surging stopped. Must have been a vacume leak at egr or throttle body gasket.