5801600484 SENSOR

DPF PRESSURE SENSOR OR DELTA P SENSOR IVECO

🔧 What is the DPF pressure sensor (Delta P)?

It is a sensor that measures the pressure difference before and after the particulate filter (DPF/FAP). That difference indicates the level of obstruction or saturation of the filter.

🔁 “ΔP” (Delta P) = pressure difference between two points. In this case, before and after the DPF.

⚙️ How does it work?

1. The sensor has two ports connected to the exhaust:

   • One before the DPF filter.

   • Another after the filter.

2. Internally, it measures the pressure at both points and calculates the difference.

3. It sends that electrical signal (in volts or millibars) to the engine ECU.

4. The ECU interprets the data to:

   • Determine if the filter is clogged.

   • Activate or not an automatic regeneration.

   • Record failures if the pressure is too high or inconsistent.

📍 Where is it located?

• Normally bolted to the body or chassis near the exhaust.

• Connected by two small tubes (dual sensor) to the exhaust pipe: one before and another after the DPF.

• It may be integrated with other sensors in a common box.

📈 Normal values (indicative)

🧪 How does the ECU interpret the sensor?

• If ΔP rises, the ECU orders an active regeneration (post-combustion injection).

• If it does not drop after several attempts → limp mode.

• If the reading is inconsistent → ΔP sensor failure is recorded.

🚨 Symptoms of sensor or DPF failure

• Frequent or failed regenerations.

• Loss of power.

• Engine light on.

• Warning messages (“Particle filter full”, “Regeneration not possible”).

• Engine in safe mode (Limp Mode).

🛠️ Diagnosis and common error codes

With equipment such as IVECO EASY, Jaltest, TEXA you can:

• View the differential pressure in real time.

• Compare with standard values by model.

• Force regeneration if necessary.

📋 Frequent codes:

🧼 Can it be cleaned?

The sensor must not be opened or cleaned internally.
But you can:

• Check and clean or replace the tubes if they are clogged with soot.

• Verify that there are no leaks or loose tubes.

🧰 How to test it (basic):

• Connected → read signal in diagnosis (normally in mbar).

• Disconnected → verify with a multimeter that there is 5V power and ground.

• You can use a manual pump to apply pressure and see if the sensor responds.

Example:

Model > 35S12 2016

Chassis > ZCFC1358305141604

Sheet > 76-01-14