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Engine Control Units (ECUs) – Car Engine Computers

Blog about ECU Engine Controllers and Automotive Electronics
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AdBlue Fault or SCR Problem – NOx Errors, No-Start Countdown & Solutions

ECU Diagnostics and Repair 19-08-2026

AdBlue, SCR or NOx Problem?

Is your vehicle counting down the remaining miles or kilometres until the engine can no longer be restarted, showing an AdBlue warning after refill, or reporting a NOx sensor fault?

In our guide, we explain the most common AdBlue problems, typical SCR and NOx faults, supported ECU types and available service options for vehicles such as Fiat Ducato, Peugeot Boxer, Citroën Jumper / Relay, Iveco Daily, VW T6, BMW and many others.

You can also find out how AdBlue OFF at our workshop, sending your own ECU to us, or purchasing a prepared replacement ECU works.

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EcuSale 0
BMW ECU Contaminated with Diesel Fuel? 2.0 Diesel ECU Repair

ECU Diagnostics and Repair 02-08-2026
BMW 2.0 Diesel ECU Contaminated with Fuel – What Should You Do?

Starting problems, no communication with the ECU or diesel fuel visible inside its connector may indicate an electronic fault in the BMW engine control unit.

In this guide, we explain:
- why diesel fuel can enter the engine ECU,
- the most common symptoms and fault codes,
- which components should be checked or replaced before refitting a repaired ECU,
- how ECU repair, cloning and programming are carried out,
- the differences between ECUs for vehicles with and without AdBlue,
- which tested BMW engine ECUs are available for sale.
Read the full guide to learn how to prevent a repaired or replacement ECU from being contaminated and damaged again.
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ECUSale - Technical Team 0

Automotive Electronics Manufacturers

ECU Engine Controllers, ABS Pumps, BCM Modules and automotive electronics.

1. Are the products tested before shipping?

Yes, every ECU engine controller, BSI module, BCM module, ABS module, transmission control unit, and other automotive electronic module is electronically tested before shipment. Each unit is checked for proper communication and correct operation to ensure you receive a fully tested product ready for installation.

2. Does the ECU engine controller require programming or coding after installation?

Whether programming or coding is required depends on the version of the product. We offer VIRGIN, IMMO OFF, and Plug & Play ECU engine controllers. Information about any required programming or coding is always clearly stated in the product description. In many cases, the unit can be installed and used without any additional coding or adaptation.

3. How do I choose the correct part for my vehicle?

The most important step is to compare the part numbers found on your original unit. Pay special attention to the Bosch, Siemens, Magneti Marelli, Continental, or vehicle manufacturer's OEM part number. If you are unsure, simply send us a photo of your existing module or provide your vehicle's VIN, and our specialists will help you identify the correct part.

4. Are the products covered by a warranty?

Yes, all ECU engine controllers, ABS modules, BCM modules, BSI modules, transmission control units, and other automotive electronic modules offered in our store are covered by a warranty. Every product is carefully tested and prepared before shipment. If you experience any issues, our technical support team is available to assist with diagnostics and help resolve the problem quickly and efficiently.

5. What payment methods are available in the store?

We offer secure online payments processed through Stripe and PayPal. Customers can pay using a credit or debit card, Apple Pay, Google Pay, Klarna, online banking payments, or a traditional bank transfer. After placing an order, you will receive a secure payment link to complete your purchase safely and conveniently.

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Engine Control Units (ECUs) – Car Engine Computers

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39119-2B260 G06 9001090051KD IMMO OFF ECU ENGINE CONTROLLER KIA CEED 1.4 391192B260

33910-69L01 0261S07288 IMMO OFF ECU ENGINE CONTROLLER SUZUKI SWIFT 1.2 3391069L01

0281019351 55259067 IMMO OFF ECU ENGINE CONTROLLER SUZUKI SX4 S-Cross

0281014281 39113-27760 IMMO OFF ECU ENGINE CONTROLLER HYUNDAI I30 3911327760

0281013402 39106-2A715 IMMO OFF ECU ENGINE CONTROLLER HYUNDAI I30 391062A715

21586539-8A 9665424480 IMMO OFF ECU engine controller J34P Peugeot Citroën Plug & Play

21585932-9A SW9663306680 IMMO OFF ECU Engine controller J34P 9663306680 PEUGEOT CITROEN

9666909780 V34.1 V29006828A IMMO OFF ECU ENGINE CONTROLLER PEUGEOT CITROEN

21586048-9A SW9664127180 J34P ECU Engine Controller Peugeot Citroën IMMO OFF Plug & Play

51851840B 0261S05142 VIRGIN ECU ENGINE CONTROLLER ALFA ROMEO MITO 51851840

7M51-12A650-XC ECU ENGINE CONTROLLER FORD 7M5112A650XC ESU-411

55578394 SW 55578394SW RENOVATED ECU ENGINE CONTROLLER MJD602.C1 OPEL COMBO HW04D 1.3 CAR PASS

55566400 HQ 55566400HQ RENOVATED ECU ENGINE CONTROLLER MJD602.M1 OPEL MERIVA HW04D 1.3 CAR PASS

55566390 HN 55566390HN RENOVATED ECU ENGINE CONTROLLER MJD602.C3 OPEL COMBO HW04D 1.3 CAR PASS

55568628 LG 55568628LG RENOVATED ECU ENGINE CONTROLLER MJD602.C1 OPEL COMBO HW04D 1.3 CAR PASS

55578395 SX 55578395SX RENOVATED ECU ENGINE CONTROLLER MJD602.C3 OPEL COMBO HW04D 1.3 CAR PASS

55574590 RR 55574590RR RENOVATED ECU ENGINE CONTROLLER OPEL COMBO D HW04D 1.3 CAR PASS

0281012569 8200518648 Virgin ECU engine for Suzuki Grand Vitara 1.9 DDiS

0261S05604 39110-2B662 ECU ENGINE CONTROLLER KIA CEED 1.6 16V IMMO OFF

39112-2B202 9001040172KC ECU ENGINE CONTROLLER HYUNDAI i30 1.6 IMMO OFF

Ecu Controller SID208

Ecu Controller Audi Q7

Ecu Controller 1.3 CDTI Corsa

Ecu Controller Ford DCM3.5

Blog about ECU Engine Controllers and Automotive Electronics Go to the Blog

AdBlue Fault or SCR Problem – NOx Errors, No-Start Countdown & Solutions

AdBlue, SCR or NOx Problem?

BMW ECU Contaminated with Diesel Fuel? 2.0 Diesel ECU Repair

BMW 2.0 Diesel ECU Contaminated with Fuel – What Should You Do?