Is it misfiring? Bung a code reader on it and have a look for a P0300 series fault code. I'd be tempted to fill it with 97 Octane E5 with some injector cleaner and take it for a bloody good thrash at high revs (aka Italian Tune-Up).


Tim H.
1986 4/4 VVTi Sport, 2002 LR Defender, 2022 Mini Cooper SE