I Came Across This Thread While Searching For A Solution To My 3000 Iseb Surging While In Economode. My Problem Was Solved By Using Theoldwizard1's Advice.
InThe Empty Fuel Cell I Put In A 1 Gallon Mixture Of Gas/ 4 Oz. Seafoam. I Let It Run For 15 Min Under Full Load, Then Turned It Off For...