This should start some sh*t 
My car threw a MIL light today at Donny - pulled in and got the reader on it - guess what ?
‘Bank 1 Running Rich’ error message. WTF ??? 
Factory map, only mods are 2bular and Forge I/C
Discuss…
Plenty to go till you get lean then, stick a manifold and pulley on there, that should sort it! 
hi chris, just found this p0172
TA - I’ll keep my eye on it. Not come on again since.
Well that reads the problem was with the non WoT section of the map cocking up the fueling for whatever reason! keep an eye out for it again
My last �5 says it’s nothing to do with the map
It’ll be a dirty great Crow stuck up yer airbox
Or his missus’s tongue!
Or his missus’s tongue! [/quote]
I think that is more likely to be a fist in the face from his Mrs, I do however suspect we will never get to meet her 
TA - I’ll keep my eye on it. Not come on again since. [/quote]
More likely to be a lambda sensor problem with a P0172.
lambda or Air flow sensor probably. change the plugs as well