Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Structure and inner electrical connection
The fuel pressure and temperature sensor is connected by a 4-pin plug connection.
The fuel pressure sensor receives its ground and a supply voltage of 5 volts from the DDE control unit. The resistance of the fuel temperature sensor is part of a voltage divider circuit that is supplied with 5 volts by the DDE control unit.
| Item | Explanation |
|---|---|
| 1 | Fuel pressure sensor |
| 2 | Fuel temperature sensor |
| Pin | Explanation |
|---|---|
| 5 V | 5 Volts, supply voltage |
| SIG1 | Fuel pressure sensor signal |
| SIG2 | Fuel pressure sensor signal |
| Terminal 31E | Terminal 31, electronics earth (ground) both sensors |
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.