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Diesel particulate filter (DPF)

P2452 Fault in the particulate filter pressure sensor wiring

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P2452 means: Fault in the particulate filter pressure sensor wiring. The pressure sensor measures how clogged the particulate filter is. Drive gently and have the car checked soon. The repair usually costs about €60–250 in Estonia. The most common cause: sensor hose is loose, split or blocked.

Is it safe to drive?Get it checked soonDrive gently and have the car checked soon.
Typical repair cost€60–250parts and labour in Estonia

What it means

The pressure sensor measures how clogged the particulate filter is. If the sensor gives false readings, the engine computer doesn't know when to burn off the filter.

What could be wrong

  1. 1Sensor hose is loose, split or blocked
  2. 2Sensor has failed
  3. 3Connector or wire

What you can check yourself

Check the sensor's two hoses. They often crack from the heat. You can do the simpler checks yourself.

How we fix it

  1. We compare the sensor reading
  2. We replace the hoses
  3. We replace the sensor

Standard SAE description: Diesel Particulate Filter Pressure Sensor A Circuit

Want a definite answer?

Bring the car to our workshop in Estonia for diagnostics. We read the fault codes, test the sensors and tell you what is wrong. Repair price depends on the work involved, generally €45 per hour.

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Questions

What does fault code P2452 mean?

Fault in the particulate filter pressure sensor wiring. The pressure sensor measures how clogged the particulate filter is. If the sensor gives false readings, the engine computer doesn't know when to burn off the filter.

Can I drive with code P2452?

Drive gently and have the car checked soon.

How much does it cost to fix P2452?

Roughly €60–250 in Estonia. The price depends on exactly what has failed and on the car.

How is P2452 fixed?

We compare the sensor reading. We replace the hoses. We replace the sensor.

Related codes

P0471Exhaust pressure sensor reads wrongP2002Particulate filter not cleaning properlyP242FParticulate filter full of ashP2453Particulate filter pressure sensor reads wrongP2463Particulate filter full of soot

This information is general and prices are approximate (Estonian workshop rates). The same code can mean different things on different cars. Only an inspection of the car gives a definite answer.

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