Signs that your car's engine is faulty and won't start

The ECM takes information from various sensors and uses this data to calculate and fine-tune the fuel and spark of the engine to ensure maximum power and efficiency. A small fault in this part will cause serious engine problems.

Engine misfires or shuts down suddenly

Abnormal engine performance is a sign of a faulty ECM. This part of your car's "computer" can cause your engine to experience minor problems like misfiring or suddenly shutting down. These symptoms often come and go without a clear frequency, but they can become more severe over time and can eventually cause an electronic system failure.

The car won't start.

Another symptom of a faulty ECM is a car that is difficult to start or will not start at all. When the engine control unit is completely damaged, the car will not be able to operate or start. Although the engine may turn over, it will not start without the "computer". A number of other problems can also cause the car to not start; therefore, it is best to take the car to a garage to check and determine the problem.

Engine performance issues

Most performance issues can be traced back to the ECM. When this component fails, the engine can lose its fuel and timing settings, which negatively impacts vehicle performance. A faulty ECM can cause a loss of power, poor acceleration, poor acceleration, engine misfires, and stalling.

Check engine light comes on

This light usually comes on when the ECM detects a problem with any of its circuits or sensors. In some cases, the check engine light may still be on; to determine the cause, a technician will have to plug in a computer and run a diagnostic scan.

More fuel-efficient

When the engine control unit has a problem, the car will malfunction and consume more fuel. This happens because the engine does not know how to regulate the right amount of fuel for combustion. In this case, the car owner will have to pay more money or fill up more at the gas station.