jenniferrichter5

Nissan NV Knock Sensor Issue

My 2018 Nissan NV with a gasoline engine is giving me fits. The check engine light is on, fuel consumption is up, and the idle is rough. I suspect it's the knock sensor since I've heard they can be problematic. Anyone else run into this?

A 2018 Nissan NV is experiencing issues such as an illuminated check engine light, increased fuel consumption, and rough idling, suspected to be caused by a faulty knock sensor. These symptoms are consistent with a malfunctioning knock sensor, which can affect ignition timing and engine performance. It is suggested to check the wiring and connector for any loose or corroded connections, and consulting a qualified mechanic is recommended for a thorough diagnosis and repair. Ultimately, the problem was resolved by fixing a bad connection.

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4 comment(s)

A defective knock sensor could indeed be the root cause of the issues you're experiencing. The symptoms you've described align with what one might expect when a knock sensor isn't functioning correctly. Have you had the chance to check the wiring and connector to the sensor itself? A loose or corroded connection can often trigger these symptoms.

Yeah, I wiggled the wires a bit, but didn't see anything obvious. Is there a good way to really check the connection without just poking around?

While visual inspection and gentle manipulation of the wiring can sometimes reveal obvious issues, a more thorough examination often requires specialized tools and expertise. Given the symptoms you're experiencing and the potential impact of a malfunctioning knock sensor on ignition timing and engine performance, it would be prudent to consult with a qualified mechanic for a proper diagnosis and repair.

Thanks for the advice. Turns out it was just a bad connection. Cost me 95€ to fix. What a rip!

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NISSAN

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