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Old 03-01-2021, 12:09 PM   #4
GoranNoSuponsaa
Scooby Newbie
 
Member#: 515535
Join Date: Jun 2020
Chapter/Region: MWSOC
Location: The Second City
Vehicle:
2007 Impreza Wagon
Silver

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Quote:
Originally Posted by Elbert Bass View Post
Video won't play BUT -
Based on the description sounds like exhaust leak. Could be exhaust manifold gaskets, most probably crack in flex pipe before catalyst. Loss of power could be A/F sensor reading false lean due to the leak.
Bad part is you have to buy the catalyst and exhaust manifold as an assembly. Don't try and save money buying cheap part - it won't last a year before the cat goes bad or clogs.
Got a brand new set of up and downstream O2's ready to go in on Wednesday when it's nice out. I've had the P0171 for like two months and was waiting for a break in the weather to install.

I fixed the video if you wouldn't mind giving it a listen. If it is indeed a cracked flex pipe which would be impossible to repair, I guess I'll go ahead and pull the trigger on those InfernoFab UELs I've had my eye on for a while.

Quote:
Originally Posted by Vancouver98STi View Post
If you wish to make this video more readily accessible, you need to change your settings at YouTube.
My bad, I fixed the embed. Should work now.
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