3-Pin Turbocharger & Intercooler Pressure Sensor Connector – OEM 4410810 / 4410811
Direct OEM-specification replacement for the 3-pin connector used on turbocharger boost pressure sensors and intercooler outlet pressure sensors. Cross-references OEM part numbers 4410810 and 4410811. Used across diesel and petrol turbocharged engine platforms. Available bare or with 15cm pre-wired leads.
| OEM Number | Application |
|---|---|
| 4410810 | Boost / intercooler pressure sensor connector — variant A |
| 4410811 | Boost / intercooler pressure sensor connector — variant B |
| Pin | Function | Failure Symptom if Corroded |
|---|---|---|
| 1 | +5V reference voltage from ECU/TCM | P0235 — boost pressure sensor circuit malfunction |
| 2 | Signal output to ECU (pressure-proportional voltage) | P0236 — boost pressure range/performance, limp mode |
| 3 | Signal ground / return | P0237 — boost pressure circuit low |
| Attribute | Detail |
|---|---|
| Pin Count | 3-Pin |
| OEM Part Numbers | 4410810 / 4410811 |
| Housing Material | High-temp nylon (PA66) |
| Wire Option | Bare connector / 15cm pre-wired leads |
| Application | Turbocharger boost pressure sensor, intercooler outlet pressure sensor |
| Code | Description |
|---|---|
| P0235 | Turbocharger boost pressure sensor A — circuit malfunction |
| P0236 | Turbocharger boost pressure sensor A — range/performance |
| P0237 | Turbocharger boost pressure sensor A — circuit low |
| P0299 | Turbocharger underboost — (ECU enters limp mode) |
Boost pressure sensors are mounted on the intercooler outlet pipe or intake manifold, in the highest-temperature zone of the forced induction system. Charge air temperatures at the intercooler outlet can reach 60–80°C under load, and the sensor connector is additionally exposed to oil mist from the PCV and blow-by system. A corroded Pin 1 (5V reference) causes the ECU to read zero boost pressure and enter limp mode (P0299), even with a fully functional turbocharger. The connector is the first component to inspect before replacing the boost pressure sensor or turbocharger.
Q: My turbocharged engine is in limp mode with P0299 but the turbo spools fine — what’s wrong?
A: P0299 (underboost) with a turbo that spools normally indicates the ECU is not receiving the boost pressure signal — most commonly caused by a corroded 3-pin boost pressure sensor connector. Inspect the connector before replacing the turbocharger or wastegate actuator.
Q: Are terminals included?
A: Yes, terminals are included with all variants.
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3 Pin Connectors
