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siegfried_held2

Toyota Noah idle issue

My 2023 Toyota Noah hybrid with 182569 km is having issues: check engine light, error stored, and engine stalls at idle. Could a faulty idle air control valve be the problem?

4 comment(s)

moritz_lion61

I had similar symptoms on my Noah. Check the air intake – could be heavily contaminated. Is your throttle body clean?

siegfried_held2 (Author)

Thanks. Can you elaborate on the air intake contamination? Was the IAC valve also affected in your case?

moritz_lion61

Confirmed – the intake was the issue for me. The contamination caused the IAC valve to malfunction. I recommend a workshop visit.

siegfried_held2 (Author)

Much appreciated. Diagnosis confirmed a heavily contaminated intake, leading to a faulty IAC valve. Repair cost was 425€ Thank you for pointing me in the right direction.

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