Causes of ECU Damage

Causes of ECU Damage

ECU problems can arise due to the age of your vehicle and the natural breakdown from wear-and-tear. However, certain conditions may also require ECU repair. If you have encountered the following problems with your automobile, your car may be at risk for ECU damage.
• Your car was jump started on reverse polarity
• Your car’s battery was overcharged by the alternator
• Your ECU overheated
• Water or fire damage to the ECU
• Broken pins in the ECU
Failure to repair a damaged ECU can cause serious and expensive engine problems. If you are in need of ECU repair, We offer an economical solution to dealership fixes that can safely get you back on the road.

The 5 symptoms of a faulty ECU, and the technology of ECU diagnostics.

The ECU, or engine control unit, is a major component of your car. It's used to regulate many systems and subsystems in your car's engine, drive train and other major components. There are many symptoms that can be associated with a faulty ECU. Here are some ways to tell if yours is damaged or faulty.

The Engine Management Light Is On

If you vehicle's check engine light remains on constantly, and never goes off, there's a good chance that your vehicle has a faulty engine control unit. There are numerous reasons why a car's check engine light will remain on. The most common reason is a problem with the ECU. If you notice that your check engine light is always on, take your in vehicle in for service and request that they check the engine control unit.

The Car Won't Start

If your vehicle fails to start for no apparent reason, this is also a good indicator that there may be a problem with the ECU. If you check the car battery, starter and other common electrical components, and the vehicle still does not start, a faulty engine control unit should be the next logical thing to consider.

Other Common Symptoms

Many other symptoms can be associated with a faulty ECU. For example, poor performance or unexplained drops in fuel economy or efficiency are often related to onboard car computer problems, or faulty ECU issues. A damaged ECU can cause problems when shifting gears in an automatic transmission, or cause sudden jerking or stopping that's similar to transmission problems. If you experience jerking or stopping, you regularly maintain your transmission properly, and the vehicle has adequate levels of transmission fluid, then a faulty ECU should be suspect.

ECU Computer Diagnostics

If you suspect that the electronic control unit in your vehicle is damaged, or is going bad, you should immediately take your vehicle to the nearest dealership, repair shop or service center. When choosing a service center to check for a faulty ECU, make sure that you visit one that uses the latest computer diagnostic equipment for checking your car's onboard computer. While there are many excellent repair shops and service centers that have the required equipment to diagnose a faulty ECU, if you want to be absolutely certain that your car is correctly diagnosed, consider taking your vehicle to a dealership that sells your particular vehicle. By visiting an authorized dealership, you will always be assured that the equipment used to diagnose it provides the most accurate readings and results. This will help the mechanic or technician best repair your vehicle. 

LAND ROVER DISCOVERY 3 2.7 TDV6 ECU

Part Numbers:
VM No: 8H2Q12A650AA / 8H2Q-12A650-AA
OEM No: 5WS40621CT / 5WS40621C-T
Vehicle Details:
Make: LAND ROVER, Model: DISCOVERY 3, Engine Size: 2.7 , Spec: TDV6, Year: 2005 - 2009
Common Faults:
Land Rover Discovery 3 engine ECU faults will generally cause non-start issues with the vehicle when it becomes faulty. Often when scanned with diagnostic tools, this ECU will fail to achieve communications making fault code reading impossible. We offer test and rebuild on this ECU.
If I purchase this will it cure my fault?
Warranty:
Lifetime Warranty*, unlimited mileage

LAND ROVER RANGE ROVER 3.6 DT ECU

Part Numbers:
VM No: 6H4Q12A650CD / 6H4Q-12A650-CD / NNW506880
OEM No: 5WS40371CT / 5WS40371C-T
Vehicle Details:
Make: LAND ROVER, Model: RANGE ROVER, Engine Size: 3.6 , Spec: DT, Year: 2006 - 2011
Common Faults:
This Range Rover engine ECU, fitted by Land Rover on builds between 2006 and 2011, can cause running issues such as misfire, power loss and intermittent to complete non-starting. Internal component breakdown is common and can also prevent the ECU from communicating to diagnostic equipment.
If I purchase this will it cure my fault?
Warranty:
Lifetime Warranty*, unlimited mileage

BMW 1 SERIES 2.0 ECU (ENGINE MANAGEMENT) 


Part Numbers:
VM No: 7580279 / 7 580 279

OEM No: 5WK93637

Vehicle Details:
Make: BMW, Model: 1 SERIES, Engine Size: 2.0 , Year: 2006 - 2014

Common Faults:
BMW 118 vehicles fitted with this Siemens ECU commonly fail mostly on missing signal to the injectors. Symptoms of this ECU failing on the BMW 118 will include: misfiring, hesitation, power loss or non start. Misfire fault codes will be prominent when scanned with diagnostic equipment including; 29CD, 29CE, 29CF and 29DO - combustion misfire on cylinders 1 to 4 respectively and 29CC - combustion misfire on several cylinders. Fault codes for injectors; 30BA - DME injectors 1/4 or DME internal and 30BB - DME injectors 2/3 or DME internal may also be present.
If I purchase this will it cure my fault?
Warranty:
Lifetime Warranty*, unlimited mileage

Alfa Romeo 156 JTD 2.4 Engine ECU

This is a common fault effecting this particular vehicle, when the ECU fails it will prevent the vehicle from starting. The fault will usually begin as an intermittent but will become more permanent if left for long enough. We will need your unit for approximately 2 - 3 working days to complete the full rebuild (times may vary depending on current workload & demand). If you would like to arrange for your unit to be tested and rebuilt then please contact us.

What is an ECU

The Engine Control Unit Explained

An ECU is the computer that runs the engine in all modern day vehicles, with the advent of electronic fuel injection systems, in the early 80's these systems where very primitive they just monitored the revolution of the engine, air flow in to the engine and engine temperature. The ECU then used this information gathered from these sensors to inject the right amount of fuel at the right time. The advantages of fuel injection over a carburettured engine was the degree of control that a computer had over fuel delivery, 1000s of times more accurate than that of a carburetor.
In the present day an ECU is a very powerful control system capable of gathering hundreds of channels of information to control almost every aspect of a modern vehicle, even its own efficiency.
The worse place in the world that you could put a sophisticated piece of electronics is under the bonnet of a car or heavy duty vehicle due to massive vibration, constant heat variations and intense radio interference from the ignition system added to the fact that the manufacturers produce on a huge scale, this causes so many problems and design flaws with modern day ECUs.