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OP,
Microscopic leaks can cause O2 sensor voltage to go low. These are usaully found at the bung welds. If your voltage is too high I suspect a failed sensor or wiring issue.
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Toy: 2008 Silver Z4MC 300WHP/241TQ 
Mods: OEM Euro Headers, RPI Scoop
Daily: 2010 Tacoma Double Cab |