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You are right that the "deceleration fuel cut off" (DFCO) is programmed into the VCM. It IS "re-programmable", BUT you need someone who knows what they are doing.
It is NOT "one" field you change. It is one parameter table plus FOUR complete graphs! "Don't try this at home."
Jim G
It is NOT "one" field you change. It is one parameter table plus FOUR complete graphs! "Don't try this at home."
Jim G