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error cond P1135


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P1135 Air/Fuel sensor heater circuit response (bank 1 sensor1).

It would be your o2 sensor. Bank one sensor one is the upstream sensor.... Pre cat.... The sensors simply screw in one side and plug into the other. Dont buy a universal o2 sensor.... There may be wiring involved, spend the extra bucks and by an OE sensor.

PS since it upstream not down stream your pretty safe knowing its the sensor, Had it been an error in the downstream sensor it may have been the cat.

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