How many camshaft sensors does the Qashqai have?

[MilesAnn]

The Qashqai has two camshaft sensors: one is the intake camshaft position sensor, and the other is the exhaust camshaft position sensor. The camshaft position sensor is a sensing device, also known as a synchronization signal sensor. It serves as a cylinder identification and positioning device, providing the ECU with camshaft position signals, which are the primary control signals for ignition. The methods for measuring the condition of the camshaft position sensor are as follows: 1. The camshaft sensor is generally a three-wire Hall sensor, with one wire being a 12V or 5V power line, one signal line, and one ground line. 2. Unplug the connector, turn the key to the second position, and use a voltmeter to confirm that the power line has voltage output. Use the meter to identify the ground line. With the voltage setting, connect one probe to the confirmed power line and the other probe to the remaining two lines. The line that shows voltage is the ground line, and the remaining one is the signal line. 3. At this point, turn off the key and disconnect the signal line, plug the connector back in, start the engine, and measure the signal line and ground line to see if there is a signal voltage. The output voltage should be less than the supply voltage. If no signal voltage is detected, the sensor is faulty.

[McJohn]

I remember paying special attention to the number of camshaft sensors when I used to drive a Qashqai. Typically, the Qashqai's engine features a dual-camshaft design, such as the common MR20 or QR25 engines, with each camshaft equipped with one sensor, bringing the total to two: one for controlling the intake and another for the exhaust side. These sensors primarily assist the car's computer in calculating ignition timing and fuel quantity to ensure smooth engine operation. If one is missing or faulty, the car might experience starting difficulties or trigger a warning light—I once encountered delayed starts and had to rush for repairs. The mechanic mentioned that the sensors are located near the valve cover on the engine, prone to dust buildup or aging, so regular maintenance is crucial. In short, Qashqai owners should remember these two sensors are key—don’t neglect upkeep to avoid major issues.

[ReeseDella]

I think the camshaft sensor design of the Qashqai is quite reasonable. Generally, there are two, one on the intake side and one on the exhaust side. Most modern car engines are arranged this way. The function of the sensors is to monitor the signal of the camshaft rotation and send it to the ECU to adjust engine performance. The Qashqai uses a multi-point injection system, relying on these two sensors to maintain precise operation. If the sensors fail while driving, the most obvious symptoms are delayed starting or engine shaking, and fuel consumption may increase. When I was tinkering with my car in the garage, I found that checking them is crucial. They are located near the valves and are easily affected by high temperatures. I recommend that owners check the wiring connections every 20,000 kilometers to prevent unexpected problems. Safe driving depends on these small components, and proper maintenance makes the engine more durable.

[Arlene]

To be honest, having two camshaft position sensors on the Qashqai isn't excessive - my own model has this exact configuration. One sensor is located on the intake camshaft, while the other monitors the exhaust side. Their primary function is sending position signals to the ECU to coordinate ignition timing. If these sensors fail during operation, you might experience engine misfires or see warning lights on the dashboard. Just pay basic attention to them - a quick cleaning during oil changes is sufficient. Simply put, two sensors are perfectly adequate as long as they're reliable.