I used to have downpipe and boost controller, and the check engine would light on sometimes. But after I took all mods out like right now complete stock even no catback, when I shift to 4th or 5th gear sometimes and over at least 3000 rpm, the light is on again. Does anyone have this problem too? :confused:

I was asking subaru service and they said they need to check it and make an appointment first...but always told me they need one day to do it...which I can't leave my car all day there.

So I was thinking is it the problem on exhaust sensor or intake ?:confused:

Who uninstalled the DP and Boost Controller?
Were all the sensors put back in place properly?

one of my friend and used to work in a mod shop

Originally posted by tora
Who uninstalled the DP and Boost Controller?
Were all the sensors put back in place properly?

one of my friend and used to work in a mod shop.
I think dp was unistalled properly. I insalled and uninstalled couple times.. it was ok but just now, sometimes it's kind of annoying about the check engine light.
boost controller I only uninstalled once I went back for warranty :p

so suggest to go back to service and check it?

have you tried reseting your ECU ?, unplug you battery for 1 hour and start it up ,let it idle for a while then go for a good burn.
your ECU is self learning so it may fix that

humm... I'll try to reset
by the way, thanks you guys for replying ;)