Howzit,

im runnin a pretty stock '97 FD3S and while driving home after work i gave it a quick squirt and it temporarily overboosted, as

this is the first time this has happened i gave it another go only to have it overboost and go to limp mode as well as rough idling

excess fuel out the exhaust glowing red cat and an engine that is just about jumping out the hood.

Any ideas guys im new to the game and miss my sev already

 

check your map sensor located on the drivers side on the firewall. the vacuum hose probably came loose