Lexus RX check engine light

Check engine light keeps popping on my 2021 Lexus RX hybrid. I've checked the gas cap. Thinking it might be related to the air supply since it sometimes feels like it's struggling. Could it be vacuum hoses or maybe something with the throttle body?

4 comment(s)

Whoa, that sounds familiar! I had a similar issue with my older Volvo XC60, but it was a real headache to diagnose! Did you check the manifold pressure? In my case, it ended up being a defective hose connection from the pump to the valve. Is the engine idling strangely?

Manifold pressure, huh? I haven't checked that specifically. Where exactly did you find this 'hose connection' you're talking about on your Volvo? And yeah, the idle is a little rough sometimes.

It was near the air valve – a real pain to get to, honestly. I remember being super frustrated. Given that your idle is also messed up and you also mentioned a struggling engine, it REALLY sounds like you have the same hose problem. I would strongly suggest to let a workshop have a look, just to make sure it is nothing serious and you can drive safe.

Thanks a lot! I took it to the workshop and told them about the hose connection from the pump to the valve. You were right, it was defective. Cost me 175€ to repair. I appreciate the insight!

Join the discussion now: