Bad spark plugs?

[StockGt03]

I changed my plugs couple weeks ago. From NGK I think it was the nickel to auto lite double platinum. Now its hesitates when I'm driving. It idles fine. N the wires are 7 months old. Has to b the plugs Right?

 

[Fivefingerdeathpunch]

You can't run platinum plugs in a 3800, they can't handle the waste spark system.

Replace with Iridiums.

 

[StockGt03]

You can't run platinum plugs in a 3800, they can't handle the waste spark system.

Replace with Iridiums.

Thanks man. Now I know.