The Diesel Particulate Filter (DPF) warning is the bane of every modern Land Rover and Jaguar owner. If you mostly do local city runs, you likely know the anxiety of seeing the amber or red DPF light.
Often, this is accompanied by code P2453. In this guide, SA Diagnostic's helps us identify whether it's a broken sensor or a blocked filter, and how to fix it yourself using the iCarsoft CR ULTRA P to save big on garage bills.
This small sensor monitors the health of your entire exhaust system. If it fails, regeneration stops.
Understanding P2453: Sensor or Clog?
The DPF Pressure Sensor measures the difference in pressure before and after the filter.
Code P2453 means the reading is erratic.
- Scenario A (Faulty Sensor): The sensor electronics have failed. Cheap to fix.
- Scenario B (Clogged Filter): The DPF is physically full of soot because the car hasn't done a "Regeneration" cycle recently.
Related Guide: Why Soot Also Kills Your MAP Sensor (P0108).
Video Tutorial: Location & Fix Strategy
Watch the technician locate the sensor and explain the cleaning process:
Step-by-Step DIY Fix
1. Check the Sensor First
Located at the back of the engine bay, check the sensor part number. The technician advises:
"Before you start doing a DPF clean... personally check to see if this hasn't gone faulty."
If you replace it, always use an OEM Sensor. Aftermarket ones often have incorrect calibration.
2. The "Secret" DIY Cleaning Method
If the sensor is fine but the DPF is clogged, you don't necessarily need a new DPF (which costs thousands).
The Hack: Remove the sensor and inject a specialized DPF Cleaning Foam directly down the rubber pipes into the exhaust. This dissolves the soot.
The "Special Function" menu on the CR ULTRA P is essential for resetting the DPF counters.
3. The Mandatory Reset
Whether you replace the sensor OR clean the filter, the job is not done until you tell the ECU.
"Do a reset adaption of the DPF, otherwise you're still going to get that fault code."
How to Reset with iCarsoft CR ULTRA P:
- Plug in the tool and select your Land Rover/Jaguar model.
- Navigate to Service Functions (or Special Functions).
- Select DPF (Diesel Particulate Filter).
- Choose "DPF Pressure Sensor Replacement" or "Reset DPF Values".
- Follow the prompts to complete the reset.
Why CR ULTRA P Pays for Itself
A single "Forced DPF Regeneration" or sensor reset at a dealership can cost over $200. The iCarsoft CR ULTRA P puts that power in your hands. It allows you to monitor soot levels in real-time and trigger regenerations on demand to keep your Land Rover running smoothly.
External Resource: Land Rover Discovery Owners Forum (Disco4.com) - A great place for community advice.
Frequently Asked Questions (FAQ)
Can I drive with a P2453 code?
If the DPF light is Amber, you can drive, but you should try to do a long highway run. If the light turns Red and you get "Restricted Performance," stop immediately. Driving with a blocked DPF can blow your turbo or cause an engine fire due to backpressure.
How often should I clean the DPF?
It depends on your driving style. If you mostly drive in the city, consider using a fuel additive or performing a "Forced Regeneration" with your CR ULTRA P every few months as preventative maintenance.
What vehicles does this apply to?
This guide covers the 2.0L Ingenium Diesel engine found in:
- Range Rover Evoque & Velar
- Land Rover Discovery Sport
- Jaguar F-Pace, E-Pace, XE, XF
Take Control of Your DPF.
Stop fearing the warning light. Get the tool that lets you reset and regenerate. Shop the iCarsoft CR ULTRA P today.
