Volvo All Engines (2017 Emissions) Fault Code: P102B00 PID: EMS Cold Start Fuel injection Quanitity Higher Than Expected

Fuel Injector operation is controlled by the Engine Control Module (ECM). The ECM provides a common supply voltage to injectors 4,5,6 (Bank 2) and there are individual output transistor drivers inside the ECM to control each individual injector’s ground circuits. There are two solenoid circuits within the injector; a Needle Control Valve and a Spill Valve. Although they are separate circuits, the same fault code is used to identify a fault in the Needle Control Valve circuit and/or the Spill Valve circuit.

Conditions for diagnostic trouble code (DTC):
1) The NOx sensor indicates the following oxygen level: Low

Probable cause
1) Poor fuel quality
2) Faulty combustion air line
3) EGR Valve Stuck in open position
4) Oil leakage, Variable Geometry Turbo
5) AHI Injector Leak
6) Fuel Injection System Over-Fueling
7) Low compression