Hello,

the story is that my dad drove it last in the 2000 en the i had a sputter under boost. When it was running stage 1 mountune. Then he parkt it and i get it going in 2021. Then got mot but co was hard to get under 4.5%. Then got to stage 2 and co was 1.4% last time i checked. It doesnt smell that bad to.

spark is good but plug getting black from the idle.

bigturbo forum i checked a lot but cant find any thing like what it coule be.

greetz