hannahmeier5
Fiat Mobi engine power loss error code
Summary of the thread
A 2022 Fiat Mobi with a gasoline engine experienced reduced engine power and an error code, raising concerns about a potential engine control unit (ECU) issue. A similar problem in another vehicle was traced to a defective main relay, which can cause ECU malfunctions. After inspection, the main relay was confirmed as the cause, and replacing it resolved the issue.
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4 comment(s)
hannahmeier5 (community.author)
Interesting. You mentioned a defective main relay. If that's the case, would that consistently lead to ECU issues, or are there other potential factors?
manuelhoffmann1
In my experience with the Corsa, the defective relay was indeed the root cause of the ECU problems. Although there might be other factors, I suggest you visit a workshop to check the main relay. It's a common issue.
hannahmeier5 (community.author)
Thank you for your insight. I had the vehicle inspected, and the main relay was indeed defective, causing the ECU malfunction. The repair cost was about 120€. I appreciate your assistance.
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FIAT
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MOBI
manuelhoffmann1
Reduced engine power and stored error codes? Sounds familiar. I had a similar problem with my Opel Corsa. Was the main relay checked? In my case, a defective relay caused the ECU to malfunction.