My new S1 has a massive fault under boost
The car splutters and bogs down under load and pops and bangs, it smells of fuel and carbons the plugs up really quickly. I've replaced the metering unit. fuel ecu plugs etc


Has anyone got any ideas pls, car isn't fully built so I can't take it to anyone atm to get them to look at it
It starts and ticks over fine and will trot along as long as it isn'tfoot to the floor
Any ideas