This 3 pin connector is found on many engine wiring looms and is often used for the crank position sensor. Popular models that that utilise this connector are the VW Golf, Passat and Eos; Audi A3, A4 and A6 etc.
3 Pin Cam & Crankshaft Sensor Connector Plug Repair Loom 1J0973723G for VW Audi
3 Pin Cam & Crankshaft Sensor Connector Plug Repair Loom 1J0973723 - VW Audi
For Honda Acura K20a2 Rsx-S Dc5 3-Pin Mass Map Cam Crank Sensor Repair Pigtail
2 pin to 3 Pin Conversion Lead For DAB118 Ignition 3 pin Module