RHKJSB06

iTrader: (1)

names josh, had my cobalt for a few months and been on css.net reading forums but now
i've got a problem that idk how to fix so i joined today lol.

I've got a silver 06 supercharged cobalt and when i first got the car it ran fine but now
its got a skip from about 5k rpms up.

its got a gm stage 2 kit, injen CAI, and a no name cat-back that sounds like a legit fart can and i hate it.
I replaced the plugs and the coils, cleaned the air filter, and changed where i fill up but still no change.

whats my next step? injectors? leak-down test?

383_Stroker

iTrader: (3)

What did you gap the new plugs at?

boosted05ss

iTrader: (10)

gap them down to .035 and adjust from there. You want the widest possible gap before misfires

footballplaya3k

iTrader: (1)

Sounds like boost blowout

RHKJSB06

iTrader: (1)

didnt gap them at all. i was told i didnt need to.

i'll take them all out and gap them tomorrow if i can find my gapping tool.

thanks for your help.

robd53

iTrader: (7)

That'll probably take care of it. My NGK's were gapped all over the place from the factory.

boosted05ss

iTrader: (10)

thats your first mistake never trust anyone when they say "just throw them in". Take the extra 2 min ad make sure all the gaps are good

RHKJSB06

iTrader: (1)

all the gaps were .050-.055.

sound abt right?

Staged07SS

iTrader: (25)

Wayyyy to big!!

They should be around 0.035" if you are stock or lightly modded.

Heavily modded cars run well with a gap around 0.032".

RHKJSB06

iTrader: (1)

set the gaps at .035 and drove it around about 30 miles and no skipping so far.

keep an eye on this thread if you will and i'll post again if it skips anymore.

i appreciate you helping me out.

Staged07SS

iTrader: (25)

Will do