pauljones63
Argo stalling at idle
Summary of the thread
A 2020 Fiat Argo is experiencing stalling at idle with the check engine light on, suspected to be due to a fuel tank ventilation system leak, possibly involving the activated charcoal filter. This issue is likely related to the EVAP system. To confirm the cause, a smoke test at a workshop is recommended, as it can accurately identify leaks and assess the condition of the activated charcoal filter.
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4 comment(s)
pauljones63 (community.author)
I haven't checked the air flow or tested the pressure sensor directly. I visually inspected the activated charcoal filter, but I didn't notice any obvious damage. Is there a method for testing the filter's functionality or the sensor's accuracy?
david_koenig71
Without proper equipment, testing the filter's functionality is tricky. The leak detection can be quite subtle. Considering the symptoms and your mileage, it might be best to take it to a workshop. They can perform a smoke test to pinpoint the leak in the EVAP system. It ended up costing me around 275€ including parts and labour. It may be a defective activated charcoal filter, like it was in my case.
pauljones63 (community.author)
Based on your experience and the potential complexities, I will schedule an appointment with a mechanic for a diagnostic assessment and potential repair. It seems the activated charcoal filter is the most probable cause, and your experience is reassuring.
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FIAT
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ARGO
david_koenig71
Interesting. I had a similar problem with my Argo. Check engine light and stalling at idle sounds awfully familiar. Did you notice any unusual air flow issues, or perhaps a faulty reading from the pressure sensor? It could very well be linked to the EVAP system. Have you inspected the activated charcoal filter for any visible damage or wear?