ok so did some upgrades: halltech intake, katech ported tb, borla h pipe and granatelli plug wires. car started fine for a few minutes then felt sluggish and flashing check engine light came on with service stabilitrak and service rear diff light on dash checked code and was only p0300 so re-seated all plug wires and they are all good checked all hoses under hood and all connected. with getting the lean code do i need to get this tuned?
not sure what the heck my issue is at this point?