P1148 – NISSAN

Code : P1148
Make : NISSAN
Description : P1148 NISSAN Closed Loop Control Function Bank 1
Possible causes :
– For Models 2005 and up:
– Faulty Air Fuel Ratio Sensor 1 Bank 1
– Air Fuel Ratio Sensor 1 Bank 1 circuit is open or shorted
– Air Fuel Ratio Sensor 1 Bank 1 circuit electrical connection
– For Models before 2005:
– Faulty Heated Oxygen Sensor 1 Bank 1
– Heated
Solutions :
– Carry out a Reset via CarDiag
– Choose a better quality fuel
– Check that the tank cap is securely closed
– Check the oil level and add more if it is lower than MAX
– Restart an Automatic diagnostic via CarDiag
– If the fault persists, you can check the “Possible causes” listed above : visually inspect (by yourself (tutorials to come) or by a professional) the wiring harness and the associated connectors, check for damaged components, and look for broken, bent, pushed, or corroded connector pins.

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