by LBR37Y » Sun Sep 09, 2012 6:36 pm
i had the same problem with mine when i put an aftermarket exhaust and i turned the car over i think about 7 or 8 times and then it returned to normal but the CEL (check engine light)
was something to do with the exhaust not a boost spike, but i soon got a tune after that and not only did the tune give extra power but also stopped the CEL from returning..
however this CEL was specific to my car it may be completely different in your case.. best option i think would find someone with a ECU reader like ECU datascan etc or get a tune
id be more inclined to get a tune for more power
goodluck
Mods on the car already
3" Xforce TBE, Iridum spark plugs, MSR Tune (191KWatw), Alpine Dub Din HU with inbuilt sat nav & bluetooth etc, top of the line memphis speakers including a memphis mojo amp to run it all, Optima Yellow top battery to juice it, TMIC from Jacks-GTB, bigger fuel pump also from Jacks-GTB, Spec.B Badge, Rota Gravels, Brembo brakes, 5% tint all round, currently working on an engine rebuild, NEW STI Shrt Block, forged pistons, bigger head studs and all work done by MSR, Cobb Intake
Mods to come
Un= Headers, Blouche Turbo, MSR Tune, Ohlin Coilys, Whiteline suspension, detail with Opticoat
TBC...
It Is What It Is