Truck and agricultural files explained

How truck and agri files differ

Trucks and agricultural engines often run larger SCR and DPF systems, multiple sensors, and more complex monitoring. Their ECUs carry different calibrations, so car files cannot be used.

Pricing reflects that extra work. Each file is written for the exact ECU and engine, so the read must come from the matching unit.

Results vary by engine, fuel, condition and supporting hardware, and no gain or outcome is guaranteed.

Stage 1, truck and agricultural

Pricing: Master file price €140 ex VAT · slave (Tier E) €85.

A standard performance calibration for the supported heavy-duty or agricultural engine. It adjusts fuelling, boost and torque targets within the standard hardware.

Send the original read, the ECU part number, the engine make and rating, and the work the vehicle does. Load and duty cycle matter for a truck or tractor calibration.

DPF off, truck and agricultural

Pricing: Master file price €150 ex VAT · slave (Tier E) €91.

The DPF calibration for heavy-duty and agricultural engines. Off-road use only. The filter itself is not changed by us, and any removal is a workshop task.

Common codes

• P2002Diesel particulate filter efficiency below threshold (Bank 1). The ECU estimates the DPF is not trapping soot as well as expected.
• P2463Diesel particulate filter soot accumulation. The ECU estimates a high soot load in the DPF.
• P2452Diesel particulate filter pressure sensor circuit. The DPF differential pressure sensor reports a fault.
• P2459Diesel particulate filter regeneration frequency. The DPF is regenerating more often than the ECU expects, which usually points to high soot loading.

EGR off, truck and agricultural

Pricing: Master file price €120 ex VAT · slave (Tier E) €72.

The EGR calibration for heavy-duty and agricultural engines. Off-road use only. Valve, cooler and piping work is outside our service.

Common codes

• P0401Exhaust gas recirculation flow insufficient. The ECU sees less EGR flow than it expects.
• P0402Exhaust gas recirculation flow excessive. The ECU sees more EGR flow than it expects.
• P0403Exhaust gas recirculation control circuit. The EGR valve control circuit reports a fault.

AdBlue / SCR off, truck and agricultural

Pricing: Master file price €200 ex VAT · slave (Tier E) €120.

The SCR calibration for heavy-duty and agricultural engines. Off-road use only. This is the most involved file in the range because the SCR system is tightly tied to the emissions monitoring.

Common codes

• P20EESCR NOx catalyst efficiency below threshold (Bank 1). The AdBlue (SCR) catalyst is not reducing NOx as well as expected.
• P2201NOx sensor circuit (Bank 1). The NOx sensor signal is outside the expected range.

DTC off, truck and agricultural

Pricing: Master file price €60 ex VAT · slave (Tier E) €36.

The DTC calibration for heavy-duty and agricultural engines. It changes which faults the ECU reports. It must not be used to hide a fault on a road vehicle, or to avoid an inspection.

Common codes

• P0601Internal control module memory checksum error. The ECU found a checksum error in its own calibration memory. This is common after a file is flashed without a valid checksum.
• P0606Control module processor fault. The ECU reports an internal processor fault.

What to send for any truck or agri file

• The original read from the correct ECU, with the part number.
• The engine make, model, rating and year.
• Any existing fault codes, read before you change anything.
• How the vehicle is used: road, farm, site or competition.

Common fault codes

Codes vary by make, model and ECU. Read the stored codes on your own car before and after flashing.

• P2002Diesel particulate filter efficiency below threshold (Bank 1). The ECU estimates the DPF is not trapping soot as well as expected.
• P2463Diesel particulate filter soot accumulation. The ECU estimates a high soot load in the DPF.
• P2452Diesel particulate filter pressure sensor circuit. The DPF differential pressure sensor reports a fault.
• P2459Diesel particulate filter regeneration frequency. The DPF is regenerating more often than the ECU expects, which usually points to high soot loading.
• P0401Exhaust gas recirculation flow insufficient. The ECU sees less EGR flow than it expects.
• P0402Exhaust gas recirculation flow excessive. The ECU sees more EGR flow than it expects.
• P0403Exhaust gas recirculation control circuit. The EGR valve control circuit reports a fault.
• P20EESCR NOx catalyst efficiency below threshold (Bank 1). The AdBlue (SCR) catalyst is not reducing NOx as well as expected.
• P2201NOx sensor circuit (Bank 1). The NOx sensor signal is outside the expected range.
• P0601Internal control module memory checksum error. The ECU found a checksum error in its own calibration memory. This is common after a file is flashed without a valid checksum.
• P0606Control module processor fault. The ECU reports an internal processor fault.