28602948 — Symptoms & Failure Modes
Common symptoms and verified failure modes of a failing Delphi 28602948 2.0 BlueHDi / TDCi (DW10) Common Rail Injector.
Crank but no start (often after fuel-system work or running low on fuel) · high
A leaking/sticking Delphi injector bleeds rail pressure during cranking so the engine cannot reach firing pressure.
Hard starting when cold · high
Excessive back-leakage lowers cranking rail pressure.
Misfire / rough idle · medium
An out-of-balance injector under/over-fuels its cylinder.
Loss of power / limp mode · medium
Rail-pressure or injector-correction faults trigger ECU derate.
Black smoke and increased fuel consumption · medium
Poor atomisation from worn nozzle.
Diesel knock / uneven running · medium
Incorrect delivery timing/quantity.