DTC B3717 Hummer
System Too Lean at Idle Bank 2
System Too Lean at Idle Bank 2
Description
Long term fuel trim on bank 2 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: B3717
- Brand: Hummer