somewhere between using bad fuel once and my turbo failied andinstalling a hypergear/walbro/450cc injectors, nistune and taking too long to get booked in at a tuner, them delaying it an extra week because they couldnt get my front shaft out (they charged me an hours labour to not get it out)(took me 10 mins and i dont even have a jack), it was tuned st 306hp, 20 psi at 4000rpm dropping to 14psi at 7000rpm. on the way home from the tune i had a strange noise (i now think it was audible knock) and repeated check engine lights so pulled over about 10 mins after picking it, (pulled over as soon as the light came on) rang the tuner and he never returned my call. it never ran properly after that, did a compression test after trying all sorts of tests and came back at 96 167 167 167 167 167, tipped in some oil and came up to 130, i found 4 big problems once i had it apart, broken engine mount, cracked piston, valve about to drop, headgasket borderline blown, so yeah been a few months driving my mums camry.