Kfz-Mastershop

08/10/2025

07/10/2025

The catalytic converter isn't just a filter: it works in conjunction with the oxygen sensors (the upper one measures the mixture and the lower one evaluates the catalytic converter's efficiency). When you remove it:

✅ The engine generates metallic noises and harsher exhaust gases because the backpressure in the exhaust system changes.
✅ The ECU receives erroneous signals from oxygen sensor #2, which triggers the check engine light and causes the engine to run on improper mixtures.
✅ Fuel consumption increases and acceleration becomes less smooth.
✅ The engine may lose torque at low RPMs, as it was designed with a specific backpressure range.

👉 Removing the catalytic converter is an option that doesn't really lead to an "improvement." The car will never run completely well because the ECU constantly interprets a fault in the system.

07/10/2025

🔹 CKP Sensor: Crankshaft Position Sensor

The crankshaft position (CKP) sensor is a key component in the engine management system. Its function is to detect the position and rotational speed of the crankshaft, providing essential information for the ECU (Engine Control Unit) to precisely regulate fuel injection and ignition.

🔹 Importance of Piston Number 1 Position

The CKP sensor, in conjunction with the camshaft position (CMP) sensor, identifies the exact position of piston number 1. This reference is crucial for the ECU to synchronize the ignition of the coils, the activation of the injectors, and other actuators, ensuring efficient combustion and optimal engine performance.

🔹 Types of signals generated by the CKP sensor

✅ Analog (inductive) signal:
Produced by electromagnetic induction sensors, which use a permanent magnet and a coil. When the reluctor wheel teeth pass in front of the sensor, they vary the reluctance of the magnetic field, generating voltage pulses in the form of a sine wave.

✅ Digital Signal (Hall Effect):
Generated by Hall effect sensors, which include a semiconductor material sensitive to magnetic fields. When they detect variations in the field, they produce a digital voltage signal that the ECU uses to calculate crankshaft position and speed.

🔹 Important Considerations

✔️ The voltage and resistance values ​​of the CKP sensor vary depending on the engine manufacturer and model. Before diagnosing or replacing the sensor, it is essential to consult the technical specifications.
✔️ A faulty CKP sensor can cause hard starting, misfires, loss of power, and engine jerking.
✔️ Maintaining the CKP sensor in good condition is key to engine performance and durability.

01/10/2025

Diferencia entre un filtro de aire nuevo y un usado. Reemplazalo para una mejor eficiencia en consumo de combustible.

29/09/2025

¿Sabías que el filtro de cabina es tu primer defensa contra el aire contaminado en tu auto? Mantén el interior fresco y libre de alergénicos cambiándolo a tiempo. ¡Tu nariz te lo agradecerá!

29/09/2025

Un filtro de aire limpio es clave para un consumo óptimo de combustible

29/09/2025