ECU or Engine Control Unit is a vital stuff of the vehicle’s onboard computer. It regulates various systems as well as subsystems that are present in the vehicle’s engine. A faulty ECU can be recognized by its symptoms. Bad mileage, check engine light illumination, poor engine performance- are various symptoms associated with a bad ECU. ECU replacement is a very expensive affair. Consult an authorized car technician who can figure-out whether reprogramming can be done or not.

1. WHAT ARE THE SIGNS
OF A DEFECTIVE ECU IN
A CAR?

2. The engine control unit (ECU) or engine control module (ECM) is a
programmable unit that regulates the performance of the engine of a car.

3. Integration of such a programmable computer unit has significantly
increased the efficiency of an internal combustion engine.

4. Any kinds of errors in the software or hardware of the ECU could have
disastrous consequences.

5. So, signs which indicate that the ECU is not working properly should not be
neglected and efforts should be made to fix such problems in time.

8. The ECU plays a vital role in the performance of an internal combustion
engine.

9. Software of the ECU analyzes the data provided by the sensors located in
different parts of the engine to regulate the fuel injection system.

10. So, any kinds of errors in the software, hardware, or the sensors which
provide data to the ECU could adversely affect the performance of an
engine.

11. The Presence of a disproportionate amount of fluid and air inside the
combustion chamber could significantly reduce the power output of the
engine.

12. Thus, such issues should be repaired in order to increase the efficiency of
the engine.

14. A defective ECU is one of many reasons behind the illumination of check
engine light on the dashboard.

15. Appearance of other warning signs related to a problematic ECU along with
the check engine light would help to get a clear idea.

16. The root cause which triggered the check engine light to illuminate needs to
be repaired immediately.

17. Besides, the computer should be properly examined to find the trouble code.

19. The ECU regulates the fuel injection system.

20. Injection of an excess amount of fuel or air into the combustion chamber
might cause engine misfiring.

21. Moreover, problems like the emission of an excess amount of unburned
hydrocarbons or the instant rise of fuel consumption by the engine also
indicates that the ECU might have defects.

23. Deformities associated with the ECU should be identified and repaired in its
early stage.

24. Overlooking such kinds of warning signs might have disastrous
consequences.

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