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miadavis17

Seat Arona diesel engine issue

I'm getting seriously frustrated with my 2020 Seat Arona diesel. The check engine light is on, and the engine feels sluggish. I've also noticed higher fuel consumption and poor engine response. The diagnostic says it's a 'crankshaft to camshaft reference value' issue. The car has 121452 km. Could it be a defective crank sensor?

Summary of the thread

A 2020 Seat Arona diesel exhibited issues such as a check engine light, sluggish performance, increased fuel consumption, and poor engine response. The diagnostic pointed to a 'crankshaft to camshaft reference value' issue, suggesting a potential problem with the crank sensor. It was advised to check the wiring for loose connections or damage, but ultimately, the sensor itself was likely defective. After replacement by a workshop, the engine's performance improved significantly.

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4 comment(s)

emilialion2

Sounds like a crank sensor issue. I had a similar problem with my old Renault Megane. Engine synchronization was off, causing misfire and a check engine light. Have you checked the wiring to the crank sensor? Sometimes it's just a loose connection.

miadavis17 (community.author)

Thanks! I haven't checked the wiring yet. Where exactly is the crank sensor located? And is it easy to check the wiring myself?

emilialion2

Yep, that 'crankshaft to camshaft reference value' points directly to the crank sensor. On my Megane, it was a pain to reach, buried near the crankshaft pulley. Checking the wiring is simple: look for any loose connectors or damaged wires. But honestly, with those symptoms and the error code, it's probably the sensor itself. I'd recommend taking it to a workshop for a proper diagnosis and replacement.

miadavis17 (community.author)

The workshop confirmed it was the crank sensor. They replaced it, and now the engine runs smoothly. Total cost was 340€. Thanks for the help!

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SEAT

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ARONA