P1106
Closed Loop Fueling Not Achieved Bank 1
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)
Symptoms
- Increased fuel consumption
- Unstable engine idling
- Reduced engine power
- Check Engine Light Illuminates
- Increased level of harmful emissions
Causes
- Bank 1 oxygen sensor malfunction
- Air leaks in the intake manifold
- Problems with fuel injectors
- Malfunction of mass air flow sensor or absolute pressure sensor
- Damage to the sensor wiring harness
How to Fix
- Check the condition and operation of oxygen sensors
- Look for air leaks in the intake system
- Check fuel injector performance
- Diagnose mass air flow sensor and absolute pressure sensor
- Check the integrity of electrical circuits and connectors