[QUOTE=dethbrd;3964282]my stock 04 s does the exact same thing. no fix yet. it has 92k miles. it was doing it when i bought it. i have changed the plugs, wires, and the corroded coil so far with no results.[/QUOTE
It's hard to tell over the bet but few things to check on a stock car no mods are
Check all your vacuum lines to you fuel pressure regulator and map sensors and your PVC pipes back to the SC
Clean out your intercooler and make shore the boots are fitted correctly.
Remove and lean your TMAP sensor to
Has the fuel filter been replaced if not it's always worth it.
Fuels pressure regulators can cause problems to.
Get your fuel pressure checked to.
The minis in hot weather do suffer from heat soak in hot wether which causes rough idle. if my one gets hot if I am sitting in traffic it gets a bit lumpy I just blip the throttle and it's ok for a little while.
You could also try a reset in the ECM it may have learnt some bad habits.
To do this just disconnect the battery neg first then poss leave it for 20 30 min the reconnect pies first the neg.
It also might get worth putting some good fuel system cleaner in
Hope this helps