Hi guys I require some advice. I've got a 94 turbo 2000 which has potentially either had an engine transplant or someone has spent money upgrading to the individual ht leads. It's currently running a TD05 turbo and a z4 ecu. But I have what appears to be a limiter or cut off that happens when ever I put my foot down. It either drops off the power just before it hits 7000 rpm or at around 120mph. Does anyone have any ideas as to what this could be? And how I can get it fixed without spending a fortune. I asked the guy I got it from for more info about what upgrades/work has been carried out but he doesn't know as he took it as a part ex against another car so he only knows what he was told.

 

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