Missing some horses
Join Date: Oct 2008
Location: United Kingdom
County: Greater London
147 2.0 Lost a Bit of Power
My 2.0 147 has lost some of it's oomph, she just doesn't hack it like she used to.
I am suspecting an internally collapsed catalytic convertor restricting flow but just in case it isn't I figured i'd post here first.
I have done a diagnostics check with AlfaDiag and no errors at all,
I have removed all the Spark Plugs and as they were in good nick - I wire brushed them back to a new like condition,
I have changed the oil (not related but I thought i'd mention it),
the air filter hasn't been replaced for about 2 years (i know, i know tut tut tut) so I have run the car today with the filter removed and no improvement,
I have disconnected the maf and took the car for a short run and no difference at all so the maf is ok,
Is there anything else worth checking?
If it is a cat does anyone know if there is higher probability of it being the dual cat pipe or the single cat further along the exhaust?