Exhaust Temperature Sensor - Denso - DET-0155
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Product Information
Full details
The Denso Exhaust Temperature Sensor (DET-0155) is designed for automotive technicians and DIY mechanics seeking to maintain or restore factory-level engine performance in compatible vehicles. As a precision NTC sensor, it delivers highly accurate thermal data from the exhaust stream to the engine management system, facilitating optimal EGR valve operation; however, users should verify exact vehicle compatibility before installation as this component is engineered to specific OEM thread and connector standards.
All features
| Model Part Number | DET-0155 |
|---|---|
| Brand | Denso |
Extended Product Information
FAQs
What is the purpose of the DET-0155 sensor?
It monitors exhaust gas temperatures near the EGR valve to help the ECU optimize combustion and emissions control.
Is this sensor compatible with all vehicles?
No, this sensor is designed for specific applications requiring an M10x1.25 thread and a 2-pin connector.
Can I reuse the old sensor gasket?
It is highly recommended to use a new crush washer or gasket if the specific application requires one to ensure a proper seal.
What does NTC stand for?
NTC stands for Negative Temperature Coefficient, meaning the sensor's electrical resistance decreases as the temperature rises.
How long is the sensor cable?
The cable on the DET-0155 is 597 mm in length.
Troubleshooting
Sensor not detected by ECU
Verify the 2-pin connector is fully seated and the locking tab has clicked into place.
Erratic temperature readings
Check for corrosion on the wiring harness pins or a frayed cable near the sensor head.
Exhaust leak around sensor base
Ensure the sensor was tightened to the correct torque value and the threading is free of debris.
Pros and Cons
Pros
- Meets or exceeds OEM performance standards
- High-accuracy NTC thermistor technology
- Rugged construction for extreme heat environments
- Exact fit for specified OEM applications
Cons
- Compatibility restricted to specific engine models
- Requires proper thread sealant application
- Professional installation recommended for difficult access points
Setup, Compatibility & Care
Before starting, ensure the engine has completely cooled to prevent burns from hot exhaust components.
- Locate the Sensor: Identify the old sensor on the EGR valve assembly.
- Electrical Disconnection: Depress the tab on the 2-pin connector and pull firmly to detach the harness.
- Extraction: Use an appropriately sized flare-nut wrench or deep-well socket to remove the old sensor.
- Installation: Thread the new Denso DET-0155 by hand to prevent cross-threading the M10x1.25 mount. Use a torque wrench to tighten to manufacturer specifications.
- Maintenance: Regularly inspect the 597 mm cable for signs of heat-induced fraying or cracking. Do not use harsh solvents when cleaning the sensor tip; use only dedicated electronic parts cleaner if necessary.