28/05/2026
Most modern vehicles rely on sensors more than people realise.
When one starts failing, it can lead to poor fuel economy, rough idle, loss of power, warning lights, or even unsafe driving conditions.
Here are 5 of the most important sensors in your vehicle and what they actually do 👇
🔧 Oxygen Sensor (O2 Sensor)
Controls fuel mixture and emissions.
🔧 MAF Sensor (Mass Air Flow)
Measures the air entering the engine for correct fuel delivery.
🔧 Throttle Position Sensor (TPS)
Tells the ECU how much throttle is being applied.
🔧 ABS Wheel Speed Sensor
Monitors wheel speed for ABS and traction control systems.
🔧 Coolant Temperature Sensor
Helps control engine temperature, cold starts, and fuel adjustment.
A faulty sensor doesn’t always stop the car immediately — but it can slowly cause bigger and more expensive problems over time.
If your car has:
• Check engine light
• Rough idle
• Poor fuel economy
• Hard starting
• Loss of power
• ABS or traction control lights
It may need a proper diagnostic before replacing random parts.
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