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Discussion Starter #1
The check engine light in my 2005 V6 is on with the following persistent trouble codes:

P0135
P0141
P0161
P2197

I tried replacing all four oxygen sensors (I know; bad idea) with new Motorcraft sensors, but the codes remain. Can any of you brilliant folks recommend other fixes I should attempt before giving up and dropping it off at a dealer? I also checked fuse 47 and it isn't blown, but should I check others? Thank you.
 

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Interesting, all four of those codes are O2 sensor related. Since you've already replaced them, I'd start checking the wires going to the sensors for shorts or breaks. Have you put a volt meter on it?
 
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