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Discussion Starter · #1 ·
Hi all.

For the last couple of months l get a reduced engine performance msg on my 2006 s40 t5. When l switch the car off and back on the message is gone and the cars performance is back to normal.

Someone told me it might be the spark plugs. They are quite old... ls it possible that the plugs can cause this?

Any advice is welcome.

Sent from my SM-J500F using Tapatalk
 

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Geez. There are so many things that could cause this problem. I would try an OBD code reader first to see if that helps.

Let us know how you make out.
 
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