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While driving I noticed that every time I shift my wideband O2 guage reads all the way up to 22, and also does so if I let off the gas all the way while in gear. I'm just curious, with the stock BPV, shouldn't this lean condition not exist?
 

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and also does so if I let off the gas all the way while in gear.
Thats because the ECU does not fire the injectors if you are engine braking. Saves gas. As for the rest I wouldn't work about it.
 
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