Has anyone had problems with the flaps on the inlet manifold? Mine occasionally stick and I get loss of power and lots of smoke (no DPF). It only seems to happen when the fuel is at its richest (first thing or under load up a long hill). It's a common fault on most modern diesels, especially BMW's and Vauxhalls. A popular mod is to remove the flaps altogether, but typical Fiat, it's a big job!
To test the theory, I bypassed the Swirl actuator so that the flaps are permanently open. The results are amazing - the car is so much smoother and revs and picks up much better. The problem with the Auto box is that the car rarely goes over 2000 revs so the flaps are shut most of the time. I am going to run it for a few weeks before I consider removing them totally though.
To test the theory, I bypassed the Swirl actuator so that the flaps are permanently open. The results are amazing - the car is so much smoother and revs and picks up much better. The problem with the Auto box is that the car rarely goes over 2000 revs so the flaps are shut most of the time. I am going to run it for a few weeks before I consider removing them totally though.