well it looks like ive nearly sorted it ive had it into blackpool motor works bmw very good they advised
Suspect exhaust blocked as low exhaust output pressure at idle and
choking when under load. Requires exhaust separating to find which part
blocked. Suspect front pre-cats collapsed and blocking main cat
so when I got it home I removed the front oxygen sensor and drove it
sounded like a tank but drove great
so looks like the cats are collapsing question are the pre-cat and cat in the same manifold?
and does anyone know best place to get new manifolds from in the uk cheers