I own 2014Grand Cherokee Ecodiesel,after the eco emission recall the Jeep lost fuel economy and pep. So I decided to install Banks derringer for a power and fuel mileage upgrade. But other day I was into throttle was pulling good and then a loud pop and engine died, will not restart? Cranks but won't start, spayed ether and starts briefly. I turn key on I hear pump running for a extended period of time. The car has 105000 miles on it , would appreciate any help..