4-Pin Pressure & Temperature Sensor Pigtail Connector – Carter / Multi-Brand | Waterproof
Waterproof 4-pin pigtail connector for pressure and temperature sensor harness applications. Compatible with Carter sensor assemblies and multi-brand engine sensor harnesses. Used on combined pressure/temperature sensors (oil, coolant, boost) that integrate both measurements in a single 4-pin connector. Available bare or with 15cm pre-wired leads.
| Pin | Function | Failure Symptom if Corroded |
|---|---|---|
| 1 | +5V reference voltage from ECU | P0106 / P0191 — sensor circuit malfunction |
| 2 | Pressure signal output to ECU | Erratic pressure reading, limp mode |
| 3 | Temperature signal output to ECU | P0116 / P0196 — temperature circuit fault |
| 4 | Signal ground / return (shared) | Both pressure and temperature readings erratic |
| Attribute | Detail |
|---|---|
| Pin Count | 4-Pin |
| Housing Material | High-temp nylon (PA66), waterproof sealed |
| Wire Option | Bare connector / 15cm pre-wired leads |
| Application | Combined pressure/temperature sensor harness (oil, coolant, boost) |
| Code | Description |
|---|---|
| P0106 | MAP / boost pressure sensor — range/performance |
| P0116 | Engine coolant temperature sensor — range/performance |
| P0191 | Fuel rail pressure sensor — range/performance |
| P0196 | Engine oil temperature sensor — range/performance |
Q: My engine shows both a pressure fault and a temperature fault simultaneously — is it the connector?
A: Simultaneous pressure and temperature faults from the same sensor location almost always indicate a corroded shared ground pin (Pin 4) in the 4-pin connector rather than two failed sensors. Inspect the connector before replacing the sensor.
Q: Are terminals included?
A: Yes, terminals are included with all variants.
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4 Pin Connectors
