P244A on Jaguar
Diesel Particulate Filter Differential Pressure Too Low (Bank 1)
P244A on Jaguar vehicles indicates diesel particulate filter differential pressure too low (bank 1). Au7o has documented this code across 1 Jaguar model — most commonly on XF. P244A is a diesel emissions code meaning the differential pressure across the diesel particulate filter (DPF) on bank 1 is too low. A pressure sensor measures the difference between the DPF inlet and outlet to gauge how loaded with soot the filter is; an abnormally low reading suggests the filter isn't restricting flow as expected. This can indicate a cracked, missing, or hollowed-out DPF substrate, or a sensor/hose problem giving a false low reading. It points to the DPF or its differential pressure sensing system rather than the engine itself. Typical repair costs on Jaguar range from $300 to $3,000, depending on the specific model and root cause.
Common Causes of P244A
- •Cracked, damaged, or failed (hollow) DPF substrate
- •Faulty DPF differential pressure sensor
- •Disconnected, cracked, or leaking pressure sensor hoses
- •Clogged or blocked pressure sensor reference lines
- •Exhaust leak upstream or around the DPF
- •Aftermarket or tampered/removed DPF
- •Wiring or connector fault at the pressure sensor
P244A on Jaguar by Model
Jaguar XF(1 issue)
- Diesel Particulate Filter Regeneration Failure2009-2018
Diesel XF models suffer from DPF regeneration issues, particularly in urban driving where the exhaust never reaches regeneration temperature. The DPF clogs with soot, triggering warning lights and reduced power. Repeated failed regeneration cycles can permanently damage the filter.
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View P244A across all makes →Frequently Asked Questions
What does P244A mean on Jaguar?▼
P244A stands for "Diesel Particulate Filter Differential Pressure Too Low (Bank 1)." P244A is a diesel emissions code meaning the differential pressure across the diesel particulate filter (DPF) on bank 1 is too low. A pressure sensor measures the difference between the DPF inlet and outlet to gauge how loaded with soot the filter is; an abnormally low reading suggests the filter isn't restricting flow as expected. This can indicate a cracked, missing, or hollowed-out DPF substrate, or a sensor/hose problem giving a false low reading. It points to the DPF or its differential pressure sensing system rather than the engine itself. On Jaguar specifically, this code is documented across 1 model.
What causes P244A on Jaguar vehicles?▼
Common causes on Jaguar: Cracked, damaged, or failed (hollow) DPF substrate, Faulty DPF differential pressure sensor, Disconnected, cracked, or leaking pressure sensor hoses, Clogged or blocked pressure sensor reference lines, Exhaust leak upstream or around the DPF. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P244A on a Jaguar?▼
Repair costs on Jaguar range from $300 to $3,000, depending on the specific model and root cause.
Which Jaguar models have P244A documented?▼
Au7o has documented P244A on 1 Jaguar model: XF.