Alphabettispaghetti Club Member Jan 16, 2022 #21 Fairlineguy said: Isn’t that a upstream and downstream sensor either side of the catalytic converter Click to expand... on the M engines, it was one per bank of 3, to set fuelling, then one post cat(if I remember correctly) to ensure fuelling.
Fairlineguy said: Isn’t that a upstream and downstream sensor either side of the catalytic converter Click to expand... on the M engines, it was one per bank of 3, to set fuelling, then one post cat(if I remember correctly) to ensure fuelling.