Vauxhall Astra 2.0 Cdti in with the following faults…
P2453 Diesel particulate filter pressure sensor performance malfunction
P2458 Diesel particulate filter regeneration time.
These faults were due to a blocked DPF filter.
The tester is showing the post clean pressure, unfortunately we couldn’t show a pre clean reading as the tester showed an error.
This only happens when the DPF is badly blocked.
