Lexus LX Engine Stalling

I'm stressed. My 2021 Lexus LX diesel is acting up. I've got 148000 km on the clock. The engine stalls sometimes when I stop, the check engine light is on, I’m seeing smoke when I accelerate, and my fuel consumption is way higher than usual. Any ideas? I suspect it's something with the air flow.

4 comment(s)

Sounds familiar. I had something similar with my LX. Is it running rough, like a real drop in power? Check the mass air flow (MAF) sensor, also called LMM. It messes with the air-fuel ratio. Did you notice any performance decline before the light came on?

A performance decline, yes! Now that you mention it, the power hasn't been quite right for a while. So, you're thinking it's definitely the LMM? What happened with yours exactly?

Yep, sounds like the LMM/MAF sensor. The symptoms match. I'd suggest getting it checked at a workshop. If it’s that sensor, replacing it should sort it out.

It was indeed the LMM sensor. I had it replaced and cost me 365€. Fuel consumption is back to normal, no more smoke, and the engine runs smoothly again! Appreciate the help!

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