Doesnt sound like it's doing the usual EGR valve symptoms of flat spot followed by power surge but I guess they do different things depending on how they fail (stuck fully open or fully shut).
Mine was replaced FOC by Fiat under 2nd year warranty although I think T said that it's covered in the 3rd year warranty as well.... Is your GP out of warranty now?
*Edit* Sorry just spotted your OP stating that it's an '06 plate GP. Wouldn't that mean you're still covered by Fiat warranty until 3 years after it's date of first registration (March 09>)???????
Mine was replaced FOC by Fiat under 2nd year warranty although I think T said that it's covered in the 3rd year warranty as well.... Is your GP out of warranty now?
*Edit* Sorry just spotted your OP stating that it's an '06 plate GP. Wouldn't that mean you're still covered by Fiat warranty until 3 years after it's date of first registration (March 09>)???????
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