O2 sensor for 12v A6

[Kev the Brit]

I was going to replace a post cat sensor this weekend with a $52 from a Ford
V6 application. However when I got the old one out it had a different
"breathing" arrangement. The new one had 3 vertical slots in it whilst the
old one has 4 little flap type holes + a hole in the end.
I am unsure how much difference this could make to the emissions/fuel
economy, the price difference is about $150.
Anyone else BTDT ?

Kevin Phillips   AIM quattrohead
Western Massachusetts
1995 900 SET 117,000m
1998 A6 Avant 60,000m
Cell 413 519 9034



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