National Traffic Week: Security begins with the review of injection sensors

Failures in electronic components can compromise safety; Learn how correct maintenance makes a difference

São Paulo, September 2025 - National Traffic Week is an initiative dedicated to society's awareness and education on safe practices in traffic, highlighting the importance of collective responsibility in the preservation of life and in the construction of a more human and sustainable mobility. During that period, The NAT - brand of Niterra, Japanese multinational also responsible for NGK and reference in components for ignition systems -, It warns that the periodic review of electronic injection sensors is an important measure to contribute to the purpose of the campaign and safety on the streets and highways.

Injection system components, often forgotten during preventive car maintenance, It is very important that the mechanic evaluates the correct functioning of the system, even if the anomaly light is not on the panel at the moment, Some failures are recorded in the injection system. The correct maintenance and inspection of the system are fundamental to ensure that the engine operates efficiently, preventing failures that can endanger the safety of drivers and passengers. To follow, Hiromori Mori, Niterra Technical Assistance Consultant, detail each of the sensors and explains its importance for the correct operation of the engine.

1- Cooling liquid temperature sensor (CTS): in addition to informing the injection system the correct engine temperature allows cold starting strategies, Electroventilator and overheating protection.

2- Rotation sensor or PMs: Not only does engine rotate, but also the position of the upper dead point of the first cylinder, ensuring reference for ignition and injection.

3- Phase Sensor or CMP: Inform the position of the engine valve command, It is fundamental to establish the sequencing of the injection and ignition system and correct operation of the variable control systems, present in the most modern engines.

4- Sensor MAP: Measures the absolute pressure in the admission collector, providing essential data to calculate the air mass that enters the engine, enabling the correct calculation of the amount of fuel that will be injected, ensuring the correct operation of the engine and levels of fuel consumption.

5- Sensor TPS Indicates the position of the acceleration butterfly, Controlling engine response and idle and acceleration strategies, ensuring precise operation of the engine, without the occurrence of failures.

6- Vehicle speed sensor: Indicates the speed of the vehicle on the instrument panel, Allows partial odometer functions on the panel, for vehicles equipped with automatic transmission, It also assists in gear exchanges and cruise speed control strategies.

7- Sensor de ABS: Measures individual wheel rotation, replacing VSS and ensuring safety and stability in braking, besides enabling the use of other electronic control modules present in the most modern vehicles such as traction control, stability, ramp descent.

8- Oxygen sensor (lambda probe): Measures the concentration of this gas in the exhaust system, allowing the air/fuel mixture adjustment, Ensuring the correct operation of the engine, levels of fuel consumption and lower pollutant emission.

9 - Fuel level sensor Inform the amount of fuel available in the tank, avoiding stops due to lack of fuel. In the newest vehicles, allows the calculation of fuel autonomy and flex fuel vehicles, Informs the supply of the vehicle, where the injection system will open a fuel type learning strategy used.

Symptoms that require immediate attention

When the sensors of the electronic injection system have failures, The vehicle may express symptoms, among which engine failures in accelerations and overtaking, sudden power of power, starting difficulty especially when the engine is cold and even excessive fuel consumption, which may indicate problems in vital components for engine operation and cause the injection light on the panel, indicating a failure.

“The evolution of technology brought more resistant sensors, But none of them are immune to the effects of time, wear out for frequent use or use of adulterated or poor quality fuel. That is why, Periodic revisions in specialized workshops and trusted stations are attitudes that reduce mechanical failures and contribute to safer traffic. ”

In the National Traffic Week, The message is clear: take care of the vehicle and its electronic systems as an electronic injection, brakes and auxiliary systems to conduction, It is not just keeping the vehicle on a good look, is to perform the correct maintenance to avoid crashes and accidents that could be prevented.