vespec Posted September 12, 2020 Share Posted September 12, 2020 Bought a 06 signum V6 diesel, in drive its fine until you put your foot down, 2 to 3rg engine revs right up then big thud goes into 3rd... use tiptronic side , works fine red lines every gear....until i disconected ecu....now it wont rev in any gear above 3500 revs... anyone any ideas... Quote Link to comment Share on other sites More sharing options...
Vauxhall Owners Club Posted September 14, 2020 Share Posted September 14, 2020 Hi.....welcome to the Forum It sounds more like the turbo being restricted (variable vanes clogged up with carbon) and going to limp mode when it reaches a certain rpm. Usually accompanied by a P0299 fault code to state Turbo Underboosting Quote Link to comment Share on other sites More sharing options...
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