hey guys i own a vs clubsport 5 speed manuel it was in a incident and ended up at the panel beaters its been there for 6 months without being started my spark plugs fouled they got changed and just got the car back not impressed about it before hand my car was running smick and real good now ive notice blows black smoke on top end and when heavy on throttle and also lags on top end also but on take off 1st n 2nd gears goes great could this mean tune went outta wack for sitting around 6months ive put bigger k&nfilters then before which where smaller if i need a dyno tune from scratch should i buy myself some ngk plugs and run em with platium instead of stock ngk plugs thanks guys let me know ur feedbacks cheers
plugs are plugs really, so just stick with well gapped NGK's was the car driven at all since the incident? i mean.. are you sure it hasnt been? black smoke could be caused by fried rings, from mr panel beaters burnouts.. run a tank of premium and injector cleaner, check filters etc... your tune wouldn't just go bad, its burnt into a chip!
the fuel is stale....fuel loses its octane level after a few months... drain the tank and refill it till tis full and see how she goes then
