'99 S80 T6
 

I have a 99 S80 T6 and recently it has developed a problem with the engine. It started one day as i took a turn and started to accelerate out of the turn, I accelerated too hard, and the STC kicked in. After i could accelerate again, the check engine light was blinking and now any time I press on the gas the light starts to blink, and the engine vibrates and doesnt accelerate as fast as usual, any suggestions

RE: '99 S80 T6
 

The car is misfiring.
Either spark plugs are bad or the coils are bad.