2002 4.4 X5 P1159 fault code help

[fcs1965]

My ses light came on and when i read codes i get P1159 and it says mfg controled fuel and air metering? I am a little confused because when i search the forum for P1159 i get a different explanation "Fuel Trim adaptation additive bank one high"
which is it? and what is faulty

thanks,
chris

[utahx5]

Fuel Trim adaptation additive bank one high" (most likley o2 sensor bank one sensor one)

[rastaFarai]

Originally Posted by utahx5

Fuel Trim adaptation additive bank one high" (most likley o2 sensor bank one sensor one)

I have this code and P1160 - I'd like to buy the O2 Sensors myself and have an indie mech put them in. What / where can I buy these? Are all O2 sensors the same or should I be looking for a specific one for bank one sensor one??

I assume the P1160 is another O2 sensor - I'll do a search and find out which one.. but if anyone an answer the question above I'll know if i can just buy it online.. any recommendations let me know.

[Bimmer360]

www.mileoneparts.com or www.autohausaz.com. You need the part numbers?

[Greg]

Check your oil separator hoses. Take off the engine cover and look all the way in the back. There will be 2 hoses that run along the top of the engine. Chances are one will have a tear or hole in it. I replaced both of mine and the codes have now been gone for almost a week. Go to partsgeek.com. for the cheapest prices.