Quote:
Originally Posted by dabenthusiast
sorry i was little unclear, i only have 90 degree on post. and the pre cat is straight in the header.
p0420 code.
i cleaned mass air flow sensor and o2 sensors are fairly new. maybe they are the bosch ones.
iv heard that bosch might not work with the spacers..
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You should do a euro 2 tune  Then you can delete the Secondary air pump and have no CEL.
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2004 X5 3.0 6 Speed MT
Build Date - 09/03
156K Alpine White / Black
Premium & Cold Weather Packs, Nav,
Tons of lighting mods, 4.8is Exhaust, Headers, Eibach Springs, OEM 87's, Custom DME Tune, OEM Hitch.
2005 X3 3.0i - 100K - Blue water Metallic / Black
2005 X5 3.0i - 140K - Alpine White / Hellbeige 2
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