Supra PCV Valve Issue

My 2019 Toyota SupraIV with a gasoline engine is showing some troubling symptoms at 99111 km. The check engine light is on, engine power is noticeably reduced, and there's visible smoke when I accelerate. Initial diagnostics point towards a crankcase ventilation valve malfunction. Anyone else experienced this on their Supras?

4 comment(s)

I had something similar happen on my Supra. Wasn't the exact same symptoms, but it felt like the engine was struggling, like trying to run a marathon with a blocked nose. Have you checked the PCV valve itself? Sometimes it's just a simple case of gunk buildup.

Interesting analogy. I've visually inspected the valve, and it seems okay, but I haven't tested its functionality beyond that. What exactly did you end up doing to fix your issue?

I wasn't able to fix it by myself, so I took it to a workshop. They confirmed the PCV valve was defective. It’s like a gate that's supposed to open and close at the right times, but it got stuck. I would suggest you do the same.

Thanks, that's helpful. I appreciate the insight. I'll get it checked out by a professional. The estimated repair cost is around 360€ including part and labor.

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