BGD AUTO Performance

Types of circuit Breakers

"🔌 SENSORES DEL VEHÍCULO Y SU VOLTAJE DE OPERACIÓN ⚙️🔋

Conocer el voltaje de operación de cada sensor es clave para un diagnóstico automotriz preciso. Aquí un resumen de los sensores y sus valores típicos:

🚗 Ubicación de sensores en el vehículo:

MAF: Flujo de aire (entrada de admisión)

MAP: Presión en múltiple

CMP: Posición del árbol de levas

CKP: Posición del cigüeñal

ECT: Temperatura del refrigerante

OXÍGENO 1 y 2: Gases de escape (antes y después del catalizador)

KNOCK: Sensor de detonación

VELOCIDAD: Rueda trasera o transmisión

REVERSA: Luz de reversa

NIVEL DE FUEL: Dentro del tanque de combustible

📊 Voltajes de operación por sensor:
Sensor Voltaje (V)
MAF 0,5 – 4,5 V
MAP 0,5 – 4,5 V
ECT 0,1 – 4,9 V
Oxígeno (1 y 2) 0 – 5 V
CMP 0 – 5 V (pulso AC)
Knock 0 – 5 V (pulso AC)
Reversa 12 V
Nivel de fuel 0,5 – 4,5 V
🔧 Consejo: Un voltaje fuera de estos rangos puede indicar falla o cableado defectuoso. ¡Mide con multímetro y compara!"

So installieren Sie eine Steuerkette an einem Audi A4 Allroad (2020–2023) mit einem 3.0 50 TDI-Motor.

Safety starts with knowing what’s what

Puerto de Diagnóstico OBD2 - OBD Port

1- What does the MAP sensor measure?
The MAP sensor measures the absolute pressure in the intake manifold of the engine. This reading is key for the ECU to adjust the air-fuel mix and ignition advance.
2- Conditions of the test:
⏭ Engine off:
- Represents atmospheric pressure.
- It must measure between 101-103 kPa (kilopascals) or a voltage of 4.5-5.0 V.
- This test confirms that the sensor responds correctly to the environment without applied vacuum.
⏭ Engine in slow motion:
- The engine is on, no accelerator applied.
- Absolute pressure should be between 25-40 kPa due to the vacuum generated in the collector, with a voltage of 0.9-1.5 V.
- This value depends on the condition of the engine and the vacuum generated.
: Medium acceleration:
- Engine starting and moderate acceleration.
- The pressure rises between 60-80 kPa, with a voltage of 2.5-3.5 V.
): Full throttle (full throttle):
- Engine started and throttle fully pressed.
The pressure is approaching the atmosphere, between 90-100 kPa, with a voltage of 4.0-4.8 V.
3- How to perform measurement:
⏭ Connector connected to the sensor:
- To measure the voltage, the sensor must be connected.
- Use a digital multimeter configured in DC voltage (DC).
- Insert the tips of the multimeter into the corresponding connector pins:
- black (ground): Dough pin.
- Red dot (signal): MAP sensor voltage signal pin.
- Readings are taken under the mentioned conditions (engine off, slowed down, etc.). ).
⏭ Disconnected sensor connector (to check feed):
sens If you suspect that the sensor is not receiving adequate feed:
With the connector disconnected, check voltage on the power pin (normally 5V provided by the ECU).
Confirm continuity on ground pin.
If voltage or pressure values do not match expected, it may indicate a faulty sensor, vacuum leakage, or wiring problems.

El sistema de inyección de gasolina suministra, regula y dosifica el combustible hacia el motor. Sus componentes principales son: bomba de combustible, filtro, riel e inyectores, regulador de presión, sensores (MAF, MAP, TPS, CKP, CMP, O₂) y la ECU.

Important this fact: The resistance of a gasoline coil injector corresponds to the electrical opposition offered by the internal coil of the injector to the passage of the current, measured in ohmios ( del). This coil, when energized by the Engine Control Unit (ECU), generates a magnetic field that opens the injector valve to allow fuel passage. To measure this resistance, a multimeter configured on the ohmios scale is used. The injector of the electrical system of the vehicle is disconnected, the tips of the multimeter are connected to the injector's terminals and the resistance value is read, which is usually between 12 and 16 Se for low impedance injectors, or higher for high impedance, depending on the type injector and manufacturer's specifications.

Basic Auto Mechanical Knowledge.