My impreza p1 is idling like **** to be honest, it idles around 500rpm and sounds like its about the cut out. Ive had it plugged in and sometimes the programe says the idle speed drops to around 245rpm. im getting these codes intermittently .... Knock sensor, maf sensor (only a historic code and havent had a live maf code for months ) and also ( p1011 i think ) air intake temperature sensor . Ive found a missing hose and i have no idea what its for or where it goes to. could any one help? im uploading pictures now, Its just under the intercooler... you will see the shiny part where the hose is supposed to be. it seems to run back to the air box... Thank you

 

Is it for the recirc pipe for the oem dumpvalve , try blocking it off as it will be letting in unmetered air

 

car just stalls with nothing on it.... What i just done is took a hose and put it over it and on the other end of the hose i put ducttape over it with a slit and that makes it run better but still not perfect. Where is the hose supposed to go tho? Is it supposed to just be a blocked off pipe?

 

If i try follow it back it seems to go back to the air box

 

If it is for the recirc it would of originally gone on to your dumpvalve.
Block it off and reset the ecu and see if its any better but better still go back to oem setup

 

okay thank alot ill block it off. how do i go about resetting the ECU

 

http://www.jollygreenmonster.com/help.htm

take a look here.

 

How did you get on mate?