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Lexus NX VANOS and Fuel Consumption

I have a 2014 Lexus NX with a gasoline engine. The check engine light is on, and I've noticed higher fuel consumption. Could this be related to a faulty Inlet VANOS?

A 2014 Lexus NX owner reported a check engine light and increased fuel consumption, suspecting a faulty Inlet VANOS. The issue was confirmed to be related to a VANOS solenoid defect, which can cause such symptoms. After replacing the faulty solenoid, the check engine light turned off, and fuel consumption returned to normal.

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4 comment(s)

Possible. High fuel consumption and CEL activation often occur due to VANOS solenoid issues. Has engine power also decreased? Did you check for oil sludge?

I haven't noticed a significant decrease in power. Where exactly should I check for oil sludge?

Given the symptoms, a VANOS solenoid defect or power supply problem seems likely. The oil sludge would be visible when inspecting the solenoid valve. I recommend taking it to a workshop for diagnostics. The repair will likely be in the range of 250€.

Thanks for confirming. I took it to a workshop, and it was indeed a faulty VANOS solenoid. Replaced it, and the engine light is now off, and fuel consumption is back to normal.

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LEXUS

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