DTC U2105 Isuzu
System Too Rich (Bank 1)
System Too Rich (Bank 1)
Description
When the sum of the short term and long term fuel corrections is less than a calibrated threshold, generally 67% (100% is nominal), the fail timer will increment. After 30 seconds of fail time the diagnostic fails.
Cause and Solution
O2 Return Wiring IssueO2 SensorMap SensorLeaking Evap Purge SolenoidExcessive Fuel Pressure Or Poor Fuel Quality ContaminationFuel Pump ModuleFuel Injector Leaking Into EngineEngine MechanicalPowertrain Control Module (Pcm)
Video Guide
Diagnostic Info
- DTC Code: U2105
- Brand: Isuzu