Cummins Engine non-EGR Fault Codes See also: Cummins Engine EGR Fault Codes 111 Electronic Control Module (Ecm) Defective 115 Faulty sensor camshaft wire or connectors 121 Faulty sensor crankshaft wire or connectors 122, 123 malfunction of the pressure sensor in the inlet manifold of the wire or connectors 131, 132 faulty pedal control fuel supply wires