Mr Engineer

04/10/2025

This image illustrates and describes four common types of automotive transmissions and their key operating characteristics:
Manual: Features a driver-controlled gear shift, requiring manual engagement of gears.
Automatic (Torque Converter): Known for smooth shifts and easy driving, as the system automatically manages gear changes.
CVT (Continuously Variable Transmission): Offers fuel efficiency and operates without fixed gears, providing seamless acceleration.
Dual-clutch: Designed for fast shifts and sporty performance, often found in performance-oriented vehicles

01/10/2025

Harrier 2022 Z Leather Package

30/08/2025

.engineer

09/08/2025

09/08/2025

Air-Fuel Ratio (AFR) Sensor Wiring – Automotive Component

The image shows a close-up of an Air-Fuel (AF) Sensor, also known as an Air-Fuel Ratio Sensor, which is used in modern vehicles to measure the proportion of air and fuel in the exhaust gases. This information helps the engine control unit (ECU) optimize combustion for better fuel efficiency and lower emissions.

The sensor is connected through a harness with five distinct wires, each serving a specific function:

1. Sensor signal wire (blue) – Sends voltage signals to the ECU.

2. Heater power supply (white) – Supplies current to the sensor's internal heater.

3. Heater ground (white) – Grounds the heater circuit.

4. Sensor ground (black or gray) – Grounds the signal circuit.

5. Reference voltage or secondary signal (yellow) – Supplies reference or additional sensor input to the ECU.

24/05/2025

What is it??

21/05/2025

Engine Mounting

14/05/2025

23/04/2025

Injector driver