[Daz86]

Hi all I’m new to the forum and new ish to volvos ive had my 2004 v70 2.5t about 8 months now I love the car but it’s rally down on power 1st & 2nd gear is fine pulls rally hard then change to 3rd and it pulls them the power dies within 2/3 seconds and the the power dies down . My spark plugs would appear I’m running lean or hot I personally think lean . But I get mixed feelings . Black exhaust tip and eggy smell after giving it some witch means it’s rich . I’m running 0.5 boost and holds it all the way up the Rev range in any gear .fuel rail holds 60psi at idle . Compression is good . But I have spotted that the exhaust vvt pulley is retarded and the inlet is advanced could it be that ? Or a lambda sensor