Hyundai Genesis Coupe 3.8L G6DA MFI Control System Wiring Diagram SD313-11
Wiring diagram showing fuel pump relay and fuel injector control circuits for a 3.8L MFI control system.
This is page SD313-11 of the MFI (Multiport Fuel Injection) Control System wiring diagram for a Hyundai vehicle with the G6DA-GSL 3.8L V6 engine, labeled as diagram (3) in a multi-page set. It shows the fuel injection and fuel pump circuits: power comes from the hot-at-all-times F/PUMP 20A fuse and the INJECTOR 15A fuse in the E/R (engine room) junction box RH, fed through the Engine Control Relay (referenced on SD313-9). The fuel pump relay (photo 19) controls the fuel sender and fuel pump motor (connector F39, ground GF03). Six fuel injectors (#1–#6) connect via connectors CLG24-1 through CLG24-6 and joint connector CLGINJ, each with individual control wires (B, P/B, W, Gr/B, Gr) going to ECM pins 90, 87, 86, 85, 89, and 88. The A/C pressure transducer (connector E02) is also shown with signal (G), 5V power (L), and ground (O) wires to ECM pins 67, 15, and 63. ECM pin 95 controls the fuel pump relay and pin 75 receives the engine control relay 'ON' input. Wire colors, connector numbers (EC21, EF11, JCL84, CLG97), and photo reference callouts are included throughout.
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Frequently asked questions
- What fuse protects the fuel pump circuit on the 3.8L G6DA MFI system?
- The F/PUMP 20A fuse, located in the E/R junction box RH and hot at all times, feeds the fuel pump relay circuit.
- What fuse powers the fuel injectors?
- The INJECTOR 15A fuse, fed from the Engine Control Relay (referenced on SD313-9), powers the six injectors through joint connector JCL84.
- Which ECM pins control the fuel injectors?
- Injector #1 is pin 90, #3 is pin 87, #5 is pin 86, #2 is pin 85, #4 is pin 89, and #6 is pin 88 (CLG-B connector).
- What are the injector connector numbers?
- Each injector uses a two-pin connector CLG24-1 through CLG24-6 (pin 2 power/orange wire, pin 1 control wire to the ECM).
- How is the A/C pressure transducer wired to the ECM?
- Via connector E02: signal (G wire) to ECM pin 67, 5V power (L wire) to pin 15, and ground (O wire) to pin 63 (ELG-A).
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