scoobmj

iTrader: (3)

hi all

got a small issue that has a bit of history....here goes

i have a 99 uk turbo earlier this year i lightly modded it (exhaust, intake fuel pump) and then it was remapped by Simon at JGM all was fine.

anyway recently i was losing oil for some reason and to cut a long story short i killed my engine (which already had a fair amount of piston slap anyway and had done 130,000 miles)

i found a 2nd hand 36,000 mile engine and fitted it all is fine with the engine and it sounds great.

anyway that's the background, now here is the problem:
i seem to be getting an issue mainly in 4th and 5th gear at around 80-90 under acceleration its hard to describe but it feels like a cross between hesitation and surging its not major but its enough to annoy me!

my thoughts were maybe overboost as my boost gauge is hitting 1.27 and previously i don't remember is going past 1.2

i was also thinking/hopeing that maybe i need to get simon to tweak my map to suit the new engine.

sorry for the long story, any advise welcome???

thanks

mark