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- 2003.5 Mazdaspeed Protege
For p0171 ur problem is the ssafc. Once i uninstalled mine the code went away.
I see you live in Maine, does it get real cool at night?
So i got the 02 sensor today and the old one that came out was missing half off the metal honeycomb around the sensor tip, like it had burnt off or just disintegrated over time...not to mention it was a denso lol
Don't u have a wideband?
i still have my cat casing so i can get a sticker, but they are "high flow" (gutted) haha