P2455 - differential pressure sensor
- Make
- Alfa Romeo
- Model
- 159 Factory Service Manual
- Year
- 2005–2011
- Section
- Examiner - diesel electronic management › P2455 - differential pressure sensor
P2455 - DIFFERENTIAL PRESSURE SENSOR
The diagnostic equipment signals: Error P2455 (differential pressure sensor pipe).
This error is detected if the electronic control unit detects a malfunction using the differential pressure sensor internal evaluation logic.
| 0 | Preliminary checks | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|---|---|---|---|
Select the following system on the diagnostic equipment: Diesel EDC16C39 electronic injection system. Delete the errors memorized. Carry out the regeneration of the particle filter Op. 0520G12 PARTICULATE FILTER (D.P.F.) - REGENERATION EXAMINER checking that the outcome is positive | Move on to Step 1 | The regeneration fails | Continue as described by the diagnostic equipment | |
| 1 | Exhaust system check | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
Check that the seal of the exhaust system is correct, with particular reference to:
| Move on to Step 2 | There are leaks or the seal is not perfect | Restore the correct seal. Replace the faulty components, if necessary | |
| 2 | Check on the operation of the differential pressure sensor | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
Check correct operation of the differential pressure sensor See Test 1080BF CHECK DIFFERENTIAL PRESSURE SENSOR OPERATION | End of diagnosis |
Parts & tools for this job For 2005 Alfa Romeo 159
- TOOLOBD2 scannerSearch: OBD2 scanner
- TOOLDigital multimeterSearch: automotive digital multimeter
- TOOLBack-probe test leadsSearch: back probe test leads
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