DPF Regereration & Differential Pressure Sensor
A work collegue had issue with a Volvo DPF and it cost him a packet. Snap, the following week my engine light came on over a weekend while away. I finally found a helpful chap who plugged the car into his scanner and found there was a "Differential Pressure Sensor Error" (P2452, P2453 or P2455 code - not sure which). He dug a bit more and found that there was a regen process happening sometime (could tell from the km's since last regen register) around when my engine light came on.
He cleared the fault and tried to run the DPF Regen manually and the error kicked in again when the car approached 3500 rpm. He had no parts but as the car was running fine otherwise I drove it back home and to a local mechanic, thinking a new differential pressure sensor would sort the issue. The partice filter was showing 49% blocked after the attempted manual regen.
The local guy phoned a friend (dealer) who told him there was no point in doing anything that a new DPF was required at a cost of €1800 + VAT! The mechanic is going to order a new differential pressure sensor first to try that but has anyone else had a horror story like that?
The car has 96000 Kms on the clock. Strangely, he said according to his scanner the DPF was 79% blocked - it was 49% blocked a few hundred miles previously.
Anyone else had a differential pressure sensor replaced? Did it cure your issue?
Hoping for help!