paulkrueger31

Espace Knock Sensor Connection

Having trouble with my 2023 Renault Espace hybrid, about 89,488 km on it. Check engine light came on, fuel consumption is higher, and the engine idles unevenly. Error code points to a defective knock sensor. The sensor looks okay, but the cable and plug connection seem a bit loose. Could this be it?

4 comment(s)

I had a similar issue with my 2018 Opel Insignia, check engine light, poor performance. It turned out to be a dodgy connection to the sensor. Have you tried cleaning the contacts with some electrical contact cleaner? Any other codes showing up besides the knock sensor?

Thanks! No other codes. Where exactly was the dodgy connection on your Insignia? Was it visibly corroded, or more of a loose fit? Did you try cleaning the connection first, or replace the sensor?

On my Insignia, it was the connector itself – the plastic housing was cracked, and the pins were slightly bent. Cleaning it didn't really fix it long-term. Replacing the connector sorted it. With the Espace being relatively new, a workshop might be worth it if cleaning doesn't help.

Thanks! I'll try cleaning the contacts first. If not, I'll take it to a workshop. A new connector should be around 95€.

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