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Project #21139

PCR2.1 03L906023SR 9978 03L907425C

VW - AUDI - SEAT - SKODA - PORSCHE Car Diesel STAGE1 ✓ Completed Sep 19, 2026

Vehicle & ECU

ECUPCR2.1
Brand groupVW - AUDI - SEAT - SKODA - PORSCHE
Vehicle typeCar
FuelDiesel
File size2.00 MB 2,097,152 bytes
Completed
Automated processing≈ 15 min
Status✓ Completed & delivered
Original filevolkswagen_simos_pcr2.1_obd_maps_03l906023sr_03l907425c_wvwzzz16zfm050076_20260919172514 (1).bin
Stock fileStock read, not yet in the ORI archive

Software identification 3

Software number03L906023SR
Version / upgrade9978
Identifier 203L907425C

Operations performed 1

  1. STAGE1 automated · solution rev 23 · ~15 min

    A safe performance tune that needs no mechanical changes and does not harm the vehicle.

Other solutions for this ECU 17

Every operation below can be ordered for the same PCR2.1 file (diesel). Prices are per file in EUR; automatic solutions are delivered within minutes, engineer-assisted ones are prepared by our tuning team.

STAGE1 A safe performance tune that needs no mechanical changes and does not harm the vehicle. done in this project ✓
STAGE2 A performance tune that requires hardware changes such as exhaust, filter or DPF removal. automatic, 47 ready solutions for this file size · ~60 min 40 EUR
STAGE3 A performance tune built from data logs after vehicle-specific hardware upgrades. automatic, 45 ready solutions for this file size · ~180 min 200 EUR
DPF OFF Deletes the diesel particulate filter (DPF) system in software; if the vehicle has AdBlue, it must be deleted first. automatic, 32 ready solutions for this file size · ~5 min 5 EUR
EGR OFF Disables the exhaust gas recirculation (EGR) system. automatic, 18 ready solutions for this file size · ~5 min 5 EUR
LAMBDA OFF Disables the oxygen (lambda) sensors. automatic, 9 ready solutions for this file size · ~5 min 5 EUR
VMAX OFF Removes the speed limiter (Vmax) or sets it to the desired value. automatic, 9 ready solutions for this file size · ~5 min 5 EUR
TVA OFF Disables the diesel throttle valve. automatic, 8 ready solutions for this file size · ~5 min 5 EUR
MAF OFF Disables the mass air flow (MAF) sensor. automatic, 4 ready solutions for this file size · ~10 min 30 EUR
STARTSTOP OFF Permanently disables the Start/Stop system. automatic, 1 ready solution for this file size · ~20 min 40 EUR
MAP SENSOR CALIBRATION automatic, instant 50 EUR
IMMO OFF automatic, instant 50 EUR
WATERPUMP OFF Disables the water pump fault code. automatic, 8 ready solutions for this file size · ~5 min 5 EUR
REVLIMIT Adjusts the engine rev limiter (hard cut) point. automatic, instant 10 EUR
LAUNCH CONTROL Adds a launch control feature that holds the engine at a set rpm for take-off. automatic, instant 20 EUR
DTC OFF Permanently disables the fault codes (DTC) you select; you need to provide the P codes to turn off. automatic, instant 10 EUR
CHECKSUM OK Automatically calculates and corrects your modified file’s checksum; if your tool cannot do checksums, we do it for you. automatic, instant 1 EUR
REV ORI engineer-assisted, on request · ~120 min 10 EUR
Have a PCR2.1 file? Sign in to the ECUHARD platform, upload it and pick the operations — automatic solutions are ready in minutes, 24/7, invoice issued automatically.
Sign in & upload your file →

About this project

Continental PCR2.1 is a diesel ECU used in VAG 1.6 TDI engines. This unit is fitted to VW - AUDI - SEAT - SKODA - PORSCHE Car vehicles. Project #21139 was completed automatically by the ECUHARD file service for a VW - AUDI - SEAT - SKODA - PORSCHE Car vehicle running software 03L906023SR 9978 03L907425C.

Frequently asked questions

What was done to this PCR2.1 file?

Operations performed: STAGE1. The modified file was checksum-corrected and delivered ready to flash.

What is the software version for this PCR2.1 file?

This project is for PCR2.1 with software numbers: 03L906023SR 9978, 03L907425C. The same operations apply to other vehicles running the same software.

Can I get the same tuning for my VW - AUDI - SEAT - SKODA - PORSCHE?

Yes. Sign in, upload your original ECU file (PCR2.1 or any supported ECU), choose the operations you need and our automated system prepares the file, usually within minutes, 24/7.

I read my ECU with a different tool — will the tuning fit my file?

Yes. Every operation is applied to the file you upload — your own read from your own car — so the tool and the read mode do not matter: the modifications are located by content, not by a fixed file layout. If your file was modified before, our REV ORI (revert to original) module repairs every changed area back to the stock values first — no matter which tool or method read it (KTAG, KESS, Flex, Autotuner, CMD, OBD, bench or boot) (10 EUR). A compatibility problem is therefore impossible.

I have an OBD read — can you tune it, or do I need a bench/boot read?

An OBD read is fine as long as it contains the software area (maps). Upload it; the platform detects the ECU and software number and shows which operations are available for your file. If the read is partial and an operation is not possible on it, you will see that before paying.

I read boot mode with KTAG / bench with Flex / bench or OBD with Autotuner — which read do I upload?

Any of them. Upload the file exactly as your tool saved it (PCR2.1 reads are supported in OBD, bench and boot form). The system works on your own read, so nothing has to be converted or matched to a different device.

Do you need the full backup (EEPROM, other sectors)?

No. Only the software-related part of the ECU is used: the maps area — the internal flash and/or the external flash, depending on where the software lives in that ECU. EEPROM and other memory sectors are not needed and are never modified. Keep your full backup for yourself as a safety copy.

How can I be sure the result will be compatible with my ECU?

Because the file returned to you is your own read with only the selected areas changed and the checksum corrected, it flashes back with the same tool and method you used to read it. The software number stays the same; nothing else in the file is touched.

What other operations are available for PCR2.1?

STAGE2 (40 EUR, automatic, 47 ready solutions for this file size); STAGE3 (200 EUR, automatic, 45 ready solutions for this file size); DPF OFF (5 EUR, automatic, 32 ready solutions for this file size); EGR OFF (5 EUR, automatic, 18 ready solutions for this file size); LAMBDA OFF (5 EUR, automatic, 9 ready solutions for this file size); VMAX OFF (5 EUR, automatic, 9 ready solutions for this file size); TVA OFF (5 EUR, automatic, 8 ready solutions for this file size); MAF OFF (30 EUR, automatic, 4 ready solutions for this file size); STARTSTOP OFF (40 EUR, automatic, 1 ready solution for this file size); MAP SENSOR CALIBRATION (50 EUR, automatic, instant); IMMO OFF (50 EUR, automatic, instant); WATERPUMP OFF (5 EUR, automatic, 8 ready solutions for this file size); REVLIMIT (10 EUR, automatic, instant); LAUNCH CONTROL (20 EUR, automatic, instant); DTC OFF (10 EUR, automatic, instant); CHECKSUM OK (1 EUR, automatic, instant); REV ORI (10 EUR, engineer-assisted, on request). Prices are per file.

I have a PCR2.1 file — how can I get it done?

Sign in to the ECUHARD platform (solutions.ecuhard.com), upload your ECU file, select the operations you need and confirm. Automatic solutions are delivered within minutes, 24/7; engineer-assisted operations are prepared by our tuning team. Each file is checksum-corrected and an invoice is issued automatically.

Do I need to send my original file?

Yes — upload the stock read of your ECU. If you do not have it, our original file archive may have a matching file by software number.