[Subaruza]

First time, removed the silencer on the intake.
Blink "Hi I'm your friendly check engine light"
ECU reset and 200 miles Blink "I'm still here"
Switched to a custom cold airbox design
Blink "Hey look at me!"
ECU reset and 50 miles Blink, blink, blink, blink, bli...
At least it did something different
ECU reset b/c flashing CE light is the Evil twin of CE light
Blink "Long time no see"
Learned to ignore it
Two weeks ago, I installed Dragon intake with ram air, heat shield, etc
On the way home, Blink
AHHHHHHHHHHH! I swear if I can't fix it in the next 100 miles I'm removing the light bulb!

 

[Warp3]

A flashing CE light usually indicates a misfire. Since this is mostly intake stuff are you sure you don't have vacuum leak somewhere in the intake system?

What year and model do you have?

 

[STiShawn]

Warp is right, check all your vaccume lines and electrical connectors....

 

[LVSUBARU]

Yes, blinking means major misfire! Don't you feel it? Check plugs and wires!