walter_fuchs90

Lexus LS rough idle and jerking

I'm having some trouble with my 2021 Lexus LS with a gasoline engine. It has 175097 km on it. The check engine light is on, and the engine runs rough, sometimes stalling at idle. Also, it jerks when accelerating. Could this be a fuel injector problem? Or maybe something with the fuel delivery?

A 2021 Lexus LS with a gasoline engine is experiencing rough idling, stalling, and jerking during acceleration, accompanied by a check engine light. The issue is suspected to be related to the fuel system, possibly involving the fuel injector or fuel delivery. After checking the fuel pressure sensor and its connections, it was confirmed that the problem was with the sensor cable/plug, which was fixed at a cost of 95€, resolving the issue.

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4 comment(s)

Sounds familiar! I had similar issues with my LS. It might be the fuel pressure sensor. Is it throwing any codes related to that? I'd check the sensor and its connections first.

Thanks for the quick reply! Where exactly is the fuel pressure sensor located, and what should I be looking for when I check the connections?

On my LS, it was near the fuel rail. Just make sure the connections are clean and tight, no frayed wires or anything. If it looks good, it could still be a faulty sensor. Honestly, after checking the connections, I just took mine to the shop. They confirmed it was the sensor.

Thanks for the advice! I checked the connections, and they seemed okay. I took it to the shop, and you were right - it was the fuel pressure sensor cable/plug. Cost me 95€ to fix. Runs great now!

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LEXUS

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