larshartmann81
Jumpy Reduced Engine Power
Summary of the thread
A 2000 Citroen Jumpy diesel experienced reduced engine power, with error codes logged in the system. Initially suspected to be a defective engine control unit, the issue was later identified as a faulty main relay. Replacing the main relay resolved the problem, restoring the vehicle's performance.
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4 comment(s)
larshartmann81 (community.author)
The main relay, huh? Where exactly is that located, and is there any way to test it before I start replacing parts?
laurablaze7
Yes, the main relay. It's often a pain. Honestly, I'd suggest a workshop. They'll be able to pinpoint it exactly and replace the relay if needed.
larshartmann81 (community.author)
Thanks for the advice! It did turn out to be a defective main relay, causing the ECU to throw errors. Replaced it for 120€ and now it runs like new again!
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CITROEN
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JUMPY
laurablaze7
Reduced power and error codes? Sounds familiar! I have a Jumpy as well. Have you checked the main relay? It's often the culprit with these kinds of issues. Have you looked into that?