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What could be the problem with these codes?

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Old 04-30-2005, 10:07 PM
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Default What could be the problem with these codes?

P0134 - HO2S Circuit Insufficient Activity Bank 1 Sensor 1 (Immature)
P0135 - HO2S Heater Performance Bank 1 Sensor 1 (SES) (OLD) (History) (Current) (Immature)
P0155 - HO2S Heater Performance Bank 2 Sensor 1 (SES) (OLD) (History) (Immature)


Has anyone had these before?




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