Hi Guys

Before I start I have done a search and have read the FAQ. I've got a 2003 Impreza Sti UK. Once the car reaches temperature when I pull up at traffic light etc it goes to stall for about 5 seconds then the revs pick up to 500rpm. The cars never done this before until I had a bit of work to do. My turbo to downpipe gaskets been blowing for a couple of weeks so I decided to change it. I removed the prodrive cat and the intercooler (hyperflow tmic), when I put it back together my cel was on. When I looked under the bonnet i'd knocked off the electrical clip on the throttle body nearest the intercooler, clipped it back on turned the car off and restarted it and the cel had gone. However now my idle is stalling when I stop the car. Any ideas as to what the hell I could have disturbed????? Got a day off work tomorrow so i'm gonna go investigating. My ideas are re seal intercooler and bov gaskets, clean MAF, clean TPS a tip for this would be appreciated, dismantle Forge BOV and stretch spring. Any more ideas guys?????

 

Sounds like your lamda sensor you have plugged it back in haven't you?