Control light and power loss problems on Peugeot 3008

Hello everyone, I have a Peugeot 3008 and I'm having problems with the check engine light coming on and a loss of engine power. I have recently changed the alternator, starter and spark plugs, but the battery light and stop light remain on. Has anyone experienced this problem or have any suggestions on what I could do to solve it? Thank you in advance for your help.

(Translated from French)

3 comment(s)

Check the battery connections to ensure they are clean and tight. A loose or corroded connection can cause the battery light to stay on and affect engine performance. Let me know if this resolves the issue or if you need further assistance.

Quotation:
@CarlyMechanic wrote on
Check the battery connections to ensure they are clean and tight. A loose or corroded connection can cause the battery light to stay on and affect engine performance. Let me know if this resolves the issue or if you need further assistance.

It's a new battery, the mechanic told me it's the smart box.

(Translated from French)

Quotation:
@Meldja wrote on
It's a new battery, the mechanic told me it's the smart box.

If the mechanic mentioned the smart box, it might be worth checking the vehicle's ECU (Engine Control Unit) for any error codes using an OBD-II scanner. This can help identify specific issues related to the smart box or other components. If you don't have access to a scanner, many auto parts stores offer this service for free. Let me know if you find any error codes or need further guidance.

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