14/04/2026
2018 Range Rover Velar
The “incredible” ingenium engine The owner came to us initially with the vehicle suffering from reduced power and intermittent cutting out, all with all with only one fault code present - a single inlet temperature sensor fault, which from our experience wouldn’t cause the issues presented.
Firstly we took a read of the ECU to check if it had previously been tuned, or altered in any way.
Surely enough a large selection of DTCs (faults) had been masked in the software, coupled with DPF functionality disabled, Nothing we didn’t expect, although one major oversight by whoever did it; the physical DPF was still in place 🤦♂️ blocked completely now and backing up exhaust gasses to the point of
blowing through the manifold and turbo gaskets.
A dangerous solution to a problem that could have been easily rectified initially. The ECU constantly monitors exhaust pressure and temperature to calculate the conditions of the DPF, if these functions are removed with the DPF still physically in the vehicle then temperatures and pressures rapidly rise, with the ECU oblivious to these conditions.
The solution - Gaskets replaced, new turbo fitted, DPF functionality reinstated into the software, along with a thorough clean of the inlet, EGR , DPF and a static regen for good measure
Now it’s back to how it should be, smoke free, and 180bhp consistently.
DPF and EGR solutions require physical AND Software modifications, be mindful of cheap quick fixes as these can sometimes escalate into a costly mistake, masking fault codes without the knowledge of what the fault is for can also lead to catastrophic failure of components and or the engine.
