When I first got my 32 it had lots of issues due to years of neglected maintenance an indifferent japanese owner.
I had the belts and plugs done, injectors and fuel filter, then o2 sensor, then coils, with each change making a noticeable improvement but it still feels flat sometimes.
It always goes hard on full throttle but seems to differ greatly in part throttle response.
On light cruise at 60kph sometimes I hear a relay tick and it feels like something is holding the car back and it's not the a/c as I first thought
because it has done it when the a/c was turned off.
It seems like the ecu is pulling some timing out for some reason.