DTC U0100 Cadillac
System Too Lean at Idle Bank 1
System Too Lean at Idle Bank 1
Description
Long term fuel trim on bank 1 based on engine torque and engine speed is higher than 5.5% at idling condition.
Cause and Solution
Oil level gaugeOil filler capEngine oilCoolantAir intake systemExhaust systemMAF amp; IAT sensor and or its circuitEVAP canisterEVAP canister purge solenoid valveHO2S and or its circuitHO2S heater and or its circuitEngine mechanical systemFuel systemECM
Video Guide
Diagnostic Info
- DTC Code: U0100
- Brand: Cadillac