gerhardneumann60
Grandland X IAT Sensor Fault
Summary of the thread
A 2019 Vauxhall Grandland X with a gasoline engine exhibited issues such as a check engine light, reduced engine power, and rough running. Diagnostic tools indicated a faulty intake air temperature (IAT) sensor as the cause. The problem was confirmed by another owner with similar symptoms, who advised professional repair. After replacing the defective IAT sensor, the vehicle's performance improved, resolving the issues.
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4 comment(s)
gerhardneumann60 (community.author)
Yeah, the fuel consumption seems a bit off now that you mention it. Was it definitely the IAT sensor in your case? Where is that thing even located?
vivien_phoenix6
Yep, it was the IAT sensor alright. I wouldn't mess with it yourself though unless you really know what you're doing. Just take it to a workshop, they'll sort it out quick.
gerhardneumann60 (community.author)
Thanks! I took it to a shop, and indeed, the IAT sensor was defective. Cost me 155€ including labor, but it's running smooth now. Appreciate the help!
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VAUXHALL
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GRANDLANDX
vivien_phoenix6
Sounds familiar! I had similar symptoms on my Grandland X. I bet your IAT sensor is toast. Did you notice any difference in fuel consumption too?