ignition break-up?

[ca18detdrift]

Lately since its started to get cold here i've ran into a little problem. When i reach boost > 0.7 bar my engine studders. I think its called ignition break-up (what causes this?). Also its gotten alot harder to start the engine from a cold start as well (not sure if they have anything to do with eachother?). Should i just change my plugs (3 months old)?

[capwred]

is it like hitting a brick wall?if so i was doing that to and i had to turn down the boost some to get it to stop.the cold is killing me.

[ca18detdrift]

No, it's more of a studdering. I also turned down the boost (which i miss now).

[capwred]

do you run a safc2?

[float_6969]

Pull the plugs and take pics or look at them. That will tell us alot about what's going on inside the engine.