DTC U1141 Dodge
Lack of HO2S-21 Switching, Fuel Trim At Rich Lean Limit
Lack of HO2S-21 Switching, Fuel Trim At Rich Lean Limit
Description
Engine running in closed loop, and the ECM detected the HO2S circuit was too lean or too rich, or that it could no longer correct Fuel Trim (i. e. , the Fuel Trim was at its calibrated rich limit or its calibrated lean limit).
Cause and Solution
Air intake system leaking, vacuum hoses leaking or damagedAir leaks located after the MAF sensor mounting locationEGR valve sticking, EGR diaphragm leaking, or gasket leakingEVAP vapor recovery system has failedExcessive fuel pressure, l
Video Guide
Diagnostic Info
- DTC Code: U1141
- Brand: Dodge