Mach 1 engine
Member
The 2004 Mach 1 engine is listed on the window sticker as 4.6 L, 4V, DOHC (FFS). I know that L is Leter, 4V is 4 valves per cylinder,DOHC is dual overhead cam but what does (ffs) stand for?
Member
I think it might be Flexible Fuel Sensor. That's what it says here anyway:
http://fordfuelinjection.com/definitions.html
http://fordfuelinjection.com/definitions.html
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