2002 4.4 X5 P1159 fault code help
 

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

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.

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

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.