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Discussion Starter · #1 ·
my engine light cam on and it is code P2626 B1S1 L.o2s pump trim open? I have a stock car just removed the air resonator thing but this light was on before I did that. any help would be great. thanks.
 

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o2 sensor failure with the one in the manifold. The heater in the sensor likely went bad. Replace the sensor and have the ECU reset.
 
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