ENGINE CONTROL UNIT is a computer with internal pre-programmed and programmable chip used to control the engine and other components’ functions by using input sensors and output components to control all engine functions. The ECU program is using the input sensor information to calculate the amount of fuel injected and when to spark the coil in order to start the engine.
Most of the ENGINE CONTROL UNITS used on today’s cars are having the ecu chip locked or programmed only for that certain car. This feature doesn’t give the option of changing the engine control unit from one car to another fact that leads to high costs in buying and programming new engine control modules in case a car is having a failure with this part of the car.
Our engineers are proud to say that they have the knowledge and high technological tools to fix and program Used Engine Control Units from one car to another, keeping exactly the same functions as the car had before the replacement. This feature we can proudly guarantee that cannot be done not even by the Official Dealer.
MAIN REASONS OF THE ENGINE CONTROL UNIT FAILURE:
OXIDATION AND MOISTURE:
- Oxidation due to moisture is one of the main reason the ECU fails. The oxidation can enter in to the ECU through the wiring and oxidizing them leaving place for the moisture to attack the ECU itself. This usually happens after a 5 to 10 years’ time. Also, oxidation can harm the fuel solenoid or the wiring running from the solenoid to the ECM harness.
INJECTOR WIRING HARNESS:
- It happens same, from the oxidation, that breaks in the injector wiring harness or the sensor wiring harness and leads to a short in the ECU (engine control module/unit)
- A poor grounding might lead to an ECM failure – this might be the result of corroded wires to the battery or frame.
DEAD BATTERY CELLS:
- If a battery is left for long time after a cell has died in the rig will affect the grounding of the battery and lead to ECU failure.
- If the vehicle was recently jump started and the cables were connected wrong can cause a spike in the ECM and make it short out.
SYMPTOMS OF A DAMAGED ECU:
- If appears a “Check Engine” light on your dashboard the first thing should be checked is the engine sub-system. If here there’s no problem, the next thing that should be checked is the PCM.
OTHER PROBLEMS THAT MIGHT INDICATE A DAMAGED ECU (PCM):
- Problems while starting your car engine:
- Poor engine performance of your car engine
- Stalling of your car engine
- Engine stalling or misfiring
- Erratic engine behavior
- Engine performance issues
- Car not starting
SPECIALIST ADVICE: If you face any of this signs u should address the problem to an expert able to identify the fault codes that indicates from where the problem comes and solve them before affecting your car.