Hyundai / Kia 3-Pin Fuel Moisture Sensor Waterproof Connector – OEM 936251-2 / 936292-2 / 1743271-2
Direct OEM-specification replacement for the TE Connectivity 3-pin waterproof connector used on fuel moisture sensors (fuel water separator sensors) and related fuel system sensors across Hyundai and Kia diesel platforms. Cross-references TE Connectivity part numbers 936251-2 (female housing), 936292-2 (male housing), and 1743271-2. Uses the 2.3mm contact series in black nylon housing with IP67 waterproof sealing.
The fuel moisture sensor connector on Hyundai and Kia diesel engines is located in the engine bay near the fuel filter assembly, exposed to heat cycling, fuel vapour, and road contamination. Connector corrosion or locking tab failure causes the ECU to lose the fuel water content signal, triggering a P0093 (fuel system leak detected) or P1093 (fuel rail pressure too low) fault. These codes are frequently misdiagnosed as a failed fuel pressure regulator or high-pressure fuel pump. Replacing the connector is the correct first step when the sensor itself tests within specification.
| OEM Number | Type | Application |
|---|---|---|
| 936251-2 | Female housing (sensor side) | TE Connectivity primary part number |
| 936292-2 | Male housing (harness side) | TE Connectivity primary part number |
| 1743271-2 | Female housing | TE Connectivity alternate part number |
| Pin | Function | Failure Symptom if Open |
|---|---|---|
| 1 | Sensor power supply (5V reference) | Sensor inoperative, P0193 or P0183 DTC |
| 2 | Signal output to ECU | P0093 / P1093 fuel system fault |
| 3 | Sensor ground | Erratic signal, P0192 or P0182 DTC |
| Attribute | Detail |
|---|---|
| Pin Count | 3-Pin |
| Contact Series | 2.3mm pitch (TE Connectivity series) |
| Housing Material | Nylon, black |
| Sealing | Waterproof (IP67 equivalent) |
| OEM Part Numbers | 936251-2 / 936292-2 / 1743271-2 |
| Applications | Fuel moisture sensor, fuel water separator sensor, fuel pressure sensor |
| Compatible Brands | Hyundai, Kia (diesel platforms) |
| Terminal Included | Yes |
Q: My Hyundai Santa Fe CRDi has a P0093 code — could it be the fuel moisture sensor connector?
A: Yes. P0093 (fuel system leak detected — large leak) on Hyundai/Kia CRDi engines is frequently caused by a corroded or open fuel moisture sensor connector rather than an actual fuel leak. The ECU interprets a missing sensor signal as a fuel system fault. Inspect the 3-pin connector at the fuel filter assembly before replacing the fuel pressure regulator or high-pressure pump.
Q: What fault codes does a failed fuel moisture sensor connector cause?
A: Common DTCs include P0093 (fuel system leak, large), P1093 (fuel rail pressure too low during power enrichment), P0192 (fuel rail pressure sensor circuit low), and P0193 (fuel rail pressure sensor circuit high). The specific code depends on which pin circuit has failed.
Q: Are terminals included?
A: Yes, terminals are included with all variants.
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3 Pin Connectors
