Hi Gang,

Almost one year ago I bought a 2002 BMW X5 4.6is, Supercharged. When time allows I 've been working through the bugs of this aging super-model and have just finished the intake manifold job, and any gaskets going in. Also did the fuel injector o-rings.

I drove 100 miles last night and two codes have returned:

P0175 - System too rich, bank 2

P1149 - H 02 S Bank 2 signal, too high

What should I be looking to replace, both O2's on bank 2? Or just downstream?

Thanks guys!

__________________
740iLDUKE
01' DINAN 7 S62 Swap - Stratus Grau
(1587 produced in SG 440)
02' 4.6is DINAN X5 S2 Supercharged
833/3258 produced | 1/27 Dinan X5's