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The Crankshaft Angle Sensor in your Infiniti, also known as the Crankshaft Position Sensor, plays a key role in monitoring the position and rotational speed of the crankshaft, which is essential for the precise operation of an internal combustion engine. The sensor is typically located near the crankshaft and uses a magnet or a Hall effect sensor to detect the crankshaft’s position. In both cases, these changes generate an electrical signal, which is sent to the engine control unit (ECU).
The ECU processes this signal in real-time, allowing it to accurately determine the crankshaft’s position. Using this information, the ECU makes precise adjustments to engine functions, including fuel injection timing and ignition timing. This ensures that the engine runs efficiently, produces the desired power, and minimizes emissions. If the crankshaft angle sensor fails or provides inaccurate data, it can lead to a number of issues in the engine management system.
Check Engine Light
The check engine light is a prominent indicator of a problem in your Infiniti’s engine management system. When the crankshaft angle sensor malfunctions, it can send erroneous data to the ECU. This can trigger the check engine light to illuminate on your dashboard. The ECU uses data from various sensors to make real-time adjustments to optimize engine performance and fuel efficiency. When the crankshaft angle sensor provides inaccurate information, it disrupts this crucial process.
Rough Idling
A failing crankshaft sensor can lead to engine stalling or rough idling. The sensor’s role in providing the ECU with data about the crankshaft’s position and speed is critical. If this data is inaccurate or inconsistent, the engine may struggle to maintain a steady RPM. This can result in rough idling, where you feel the engine shaking or hesitating, and it might even lead to stalling, especially when you come to a stop. These issues can significantly affect your driving experience and safety.
Poor Acceleration
The accurate timing of fuel injection and ignition is essential for smooth and responsive acceleration. When the crankshaft sensor is faulty, it disrupts this timing. This disruption can lead to sluggish acceleration and reduced power. When you press the gas pedal, your Infiniti may respond slowly, and you may notice that it feels notably slower than usual. This can be particularly concerning when merging onto highways or overtaking other vehicles.
Difficulty Starting
A malfunctioning crankshaft angle sensor can make starting your Infiniti a frustrating experience. The sensor’s role in providing data to the ECU is needed for initiating the proper ignition sequence. When the sensor is faulty, you may experience prolonged cranking before the engine fires up, or in some cases, the engine may not start at all.
Addressing Crankshaft Angle Sensor Failure
Ignoring a malfunctioning sensor can lead to more severe engine problems. Here’s what you can do to fix this problem:
- Diagnostic Scan: When you notice any of the abovementioned signs, take your Infiniti to a reputable auto repair shop or dealership for a diagnostic scan. This scan will help pinpoint the exact issue, and experienced technicians can use the diagnostic trouble codes (DTCs) to identify whether the crankshaft sensor is the problem. A comprehensive diagnosis will ensure that you’re addressing the correct issue.
- Sensor Replacement: If the diagnostic scan confirms that the crankshaft angle sensor is failing or has failed, it should be replaced. Ensure that you use a high-quality sensor that is compatible with your specific Infiniti model. Replacing the sensor with a reliable, well-matched component is crucial to restoring your Infiniti’s performance.
Sensor replacement should be carried out by a certified mechanic who is familiar with Infiniti. They can ensure that the new sensor is calibrated correctly and integrated into the engine management system accurately.
Trust Bruce Cox Imports for Expert Crankshaft Angle Sensor Repairs in Bellingham
At Bruce Cox Imports, we are your trusted garage 
for Crankshaft Angle sensor repairs. Our team of certified mechanics, with over 25 years of experience, is dedicated to providing your Infiniti with the care it deserves.
Whether you’re from Ferndale, Lynden, Bellingham, WA, or the surrounding areas, we’re here to assist you with your automotive needs. We understand the importance of timely repairs, and that’s why we offer convenient services, making it easier for you to get your Infiniti back on the road quickly. Don’t hesitate to book an appointment with us today and experience the difference of having your Infiniti serviced by professionals who are passionate about ensuring your car runs at its best.