Corsa ECU Error

My 2005 Vauxhall Corsa diesel has lost power and feels sluggish. The reader shows an ECU error. Has anyone else experienced this? Is a new ECU necessary, or should I check something else first?

4 comment(s)

I had similar issues with my Corsa: reduced engine power and an ECU error code. Have you checked the main relay?

Main relay? Where is that located, and what should I look for?

Yes, the main relay. It was in the engine compartment's fuse box on my car. A bad main relay can cause those symptoms. Given the error message, I'd suggest having it checked at a workshop.

Thanks! It was a faulty relay causing the ECU issue. Cost 120€ at the workshop, but it runs smoothly now.

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