Bosch 0261230295 Pressure and Temperature Sensor

Overview of the Bosch 0261230295 Pressure and Temperature Sensor

The Bosch 0261230295 is a high‑performance Manifold Absolute Pressure (MAP) sensor that also incorporates an intake air temperature (IAT) measurement function. Designed for modern internal combustion engines, it delivers precise pressure and temperature data to the engine control unit (ECU), enabling optimal fuel delivery, ignition timing, and overall engine efficiency.

Key Functionalities

• Dual‑sensor architecture: Simultaneous measurement of manifold pressure and intake air temperature.
• Wide operating range: Accurate readings from –40 °C to +150 °C for temperature, and 0–10 kPa (or equivalent) for pressure.
• High signal stability: Low noise output with a typical voltage swing of 0.5 V to 4.5 V.
• Robust construction: Stainless steel housing and sealed connectors protect against oil, coolant, and vibration.

Electrical Characteristics

Compatibility and Vehicle Applications

The Bosch 0261230295 is engineered to fit a broad range of vehicles, particularly those from the Ford, Volvo, Land Rover, Jaguar, Honda, and other OEMs. Below are representative models:

• Ford: Focus II/III, Galaxy, Kuga, S‑Max, Mondeo, F‑Series (2.0 L ST, 2.5 L RS)
• Volvo: C30/C70/S60/S80/V50/V60/V70/XC60/XC70/XC90 series (2004–2017 models)
• Land Rover: Discovery, Range Rover, Range Rover Evoque, Velar, Freelander
• Jaguar: F‑Type, XJ, XF, XE, E‑Series
• Honda: Accord, Civic (selected turbo models)

Installation Notes

1. Disconnect the battery to prevent accidental ECU resets.
2. Remove the existing MAP/IAT sensor by unscrewing the mounting nut and gently pulling it out of the intake manifold.
3. Clean the mounting surface with isopropyl alcohol; avoid oil or debris.
4. Insert the Bosch 0261230295, aligning the connector pins. Tighten the nut to the manufacturer’s torque specification (typically 4–6 Nm).
5. Reconnect the battery and perform an ECU reset if required.
6. Run a diagnostic scan to verify sensor operation; look for stable pressure and temperature curves during idle and acceleration.

Performance Benefits

• Enhanced Fuel Efficiency: Accurate MAP data allows the ECU to calculate optimal air/fuel ratios, reducing fuel consumption by up to 3% in some engines.
• Improved Engine Response: Real‑time pressure and temperature feedback enables quicker throttle response and smoother idle.
• Reduced Emissions: Precise sensor readings help maintain stoichiometric combustion, lowering NOx and CO₂ outputs.
• Longevity: The robust design resists wear from high temperatures and pressure spikes, extending service life beyond 150,000 km in many applications.

Troubleshooting Guide

If the ECU reports a MAP/IAT fault code (e.g., P0128 or P0101), consider the following steps:

1. Check wiring continuity and connector integrity.
2. Verify that the sensor is seated correctly; an improper fit can cause intermittent signals.
3. Measure the voltage output with a multimeter while the engine runs; it should vary smoothly with throttle position.
4. If the signal remains flat or erratic, replace the sensor.

Conclusion

The Bosch 0261230295 Pressure and Temperature Sensor is a reliable, versatile component that plays a critical role in engine management systems across numerous vehicle platforms. Its dual‑sensor capability, wide operating range, and durable construction make it an excellent choice for both OEM installations and high‑performance aftermarket applications.