Just read that the 2012 Puma will have a 2.2 L engine. Anyone know anything about it and hoe it performs?

I have 2003 Td5 110 165000KMS excellent vehicle Dastek chip. Cracked head replaced 1 year ago. Recently started intermittent episodes of "missing". Not like a single cylinder is misfiring but as if the the ignition was turned on and off in a fraction of a second. May do it once in a day or...