lea_fuchs40

Seat Arosa engine trouble IAT sensor suspected

My Seat Arosa from with a gasoline engine is giving me grief. The check engine light is on, and the engine feels like it's lost some power. Also idles a bit rough. Had the error memory read, and it's pointing towards the intake air temperature sensor. I'm guessing this is the IAT sensor? Anyone else had similar engine issues with this car sensor?

4 comment(s)

Whoa, sounds familiar! I had a similar issue with my Seat Ibiza. The engine was acting up, and the check engine light was on. It could be the IAT sensor, like you suspect. It tells the engine computer how dense the air is, so it can mix the right amount of fuel. If it's faulty, the engine could run rough or lose power. Have you tried checking the wiring to the sensor? Sometimes it's just a loose connection or a damaged wire. Also, where did you get the error code read?

Thanks for the quick reply! I did check the wiring quickly, but didn't see anything obvious. The error code was read at a local garage. You mentioned checking the wiring more thoroughly – is there a specific way to do that, or anything in particular I should be looking for?

Yeah, definitely sounds like the IAT sensor then, especially if you're getting that error code. As for the wiring, I'd suggest having a good look for any breaks in the insulation, corrosion, or loose connectors. But honestly, if you're not comfortable doing that, it might be best to just take it to a workshop. Replacing the IAT sensor itself isn't usually too expensive, but you want to be sure that's actually the problem before you start throwing parts at it. They can test the sensor properly and rule out other possible causes.

Just wanted to say thanks for the input. Took it to the shop, and it was indeed the IAT sensor. They replaced it, and the Arosa is running smoothly again. Cost me 155€, but worth it to get rid of that engine light and get the power back.

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