I have a 1999 impreza rs the other day my idle started to rev up and down until warmed up. So i took off iavc and cleaned it, it stop reving but now it was stuck at 1000rpms so I took off throttle control sensor thing thats when all hell broke lose cuz I didnt put back on right so it rev'ed up 3500 and stayed there.So I put back on I think it was right but now the car idles at 1500-1600 rpm now and I cant get it to idle at normal 500-800 rpms!
Car doesnt stall and does rev up down alittle between 1500-1600 cant get idle to lower to normal when at temp!PLease help! Can I adjust something?
![]()
Update got my CEL check and it said knock sensor so I changed it and it did nothing still idles at 1500-2000 now and CEL is still on!!!
The 3 things I circrled are the parts I took off and cleaned and this is when all this started please help! That sensor on left is what i think is doing it! Spent all day tryting to fix this with no luck!
Car doesnt stall and does rev up down alittle between 1500-1600 cant get idle to lower to normal when at temp!PLease help! Can I adjust something?

Update got my CEL check and it said knock sensor so I changed it and it did nothing still idles at 1500-2000 now and CEL is still on!!!
The 3 things I circrled are the parts I took off and cleaned and this is when all this started please help! That sensor on left is what i think is doing it! Spent all day tryting to fix this with no luck!