antonia_himmel12
Etios check engine light IAT sensor
Summary of the thread
A 2018 Toyota Etios experienced reduced power and rough running, with a check engine light indicating a potential issue with the Intake Air Temperature (IAT) sensor. The problem was confirmed to be a defective IAT sensor. Replacing the sensor resolved the issue, restoring the engine's performance.
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4 comment(s)
antonia_himmel12 (community.author)
Interesting. Was the error code you received also pointing towards the IAT sensor? What diagnostic steps did you take?
raphaeldark1
Yep, same error. I tried cleaning the sensor, but it didn't fix anything. I'd suggest taking it to a workshop; they can confirm if it's the IAT sensor for sure.
antonia_himmel12 (community.author)
Thank you for the insight. I followed your advice and visited a workshop. The IAT sensor was indeed defective, and the replacement cost me 155€. The engine is now running smoothly again.
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TOYOTA
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ETIOS
raphaeldark1
Hey, that sounds familiar. I had similar symptoms on my old Opel Corsa. Check engine light, sluggish performance... Turned out to be a dodgy air sensor too.