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Old 01-23-2002, 02:55 AM   #12
slamck
Scooby Newbie
 
Member#: 1436
Join Date: May 2000
Location: Nothern California
Vehicle:
'00 RS
'03 LLBean, '05 B4

Default My car was running lean

I finally took my car to the shop, which installed the random tech hi-flow cat in my car 6 months ago. The cat is broken into two pieces, in a way similar to the original cat came with the MRT exhaust. I spotted that the Fram oil filter's rubber grippy coating facing the header was burnt and turned charcoal. The oil filter sits just a few inches away from the passenger side header. This makes me believe extremely high egt cooked the oil filter inches away from the exhaust port and killed the cat downstream. This implies my car is running lean at certain condition. I've read some posts about stock fuel system only capable of supporting certain hp. Could I be hitting the fuel limit with all the NA mod I have?
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