So I have replaced spark plugs, have splitfires and replaced coil pack harness but whenever I put a bit of load on the car it just breaks up, I'm thinking now to do o2 sensor as I get a misfire on idle, I replaced thermostat as it never comes up to temp but it must be the coolant temp sensor. Basically whenever I give it more than a qtr throttle it sounds like the fuel cut you get when traction control would kick in.