Pugwash Posted April 7, 2012 Report Share Posted April 7, 2012 Been running the Impreza on 98ron since I got it and on part acceleration the engine seemed to surge when the turbo started kicking in. I'd assumed it was gonna need looking at. Had to stick some regular 95 in it last night and lo and behold the problem is gone. Anybody shed some light on this? It's had the Prodrive exhaust n map done. Is it poss the remap has been done to run on the cheaper stuff? Link to comment Share on other sites More sharing options...
CMSMJ1 Posted April 7, 2012 Report Share Posted April 7, 2012 std jap fuelling would be for higher octane. Is yours a UK model? You could prob reset the ECU and make it learn the fuel again? Link to comment Share on other sites More sharing options...
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