Causes and Fixes Nissan P1168 Code: Closed Loop Control Function Bank 2

How to fix a Nissan P1168 engine code: Closed Loop Control Function Bank 2
How To Test Upstream Oxygen Sensor 1 Video: • How To Test Upstream O...
How To Test Oxygen Sensor Heater Element Video:
• How To Test Oxygen Sen...
A closed loop is when the computer is using the O2 Sensor for feedback.
An open loop is when the computer is Not using the O2 Sensor for feedback.
Open loop is normal when engine first starts.
Once the engine warms up it should go into a closed loop.
Possible Causes of a Nissan P1168 Code:
Faulty Air Fuel Ratio O2 Sensor-1 Bank-2
Bad Wiring Open or Short
Fuse
Exhaust Leak
www.backyardmechanic.org
By using this information user assumes all risk of use.