Hey people my names derrick im only new to this site and the whole skyline turbo issue. Recently bought a r32 gtst with min mods front mount intercooler, exhaust, 2.5 from motor 3 inch cat back, dual stage boost controller 7psi and 14psi by switch and ye stock turbo owned it for last 5 days or so seems 2day after driving home today went to give it a hit in boost didnt seem like it was going anywhere like "showed on boost gauge which is leaking 14psi" didnt feel that whole kick in the ass like it did earlier where it would wheel spin or whateva, but ye didnt move, was like turbo didnt work or went N.A. Still spools just felt this big ass lag but kms was still going up dont know how 2 describe it properlly, but seems like it backfires or pops when i give it flat than change gears.. hope im not confusing people. mates said could be a vacuum leak in one of the hoses, another said could be fuel pump so wondering with people who own one what could be the possible problems.
any help will do please
kind regards Derrick.