Scirocco Central

Hi, I have a scirocco 2.0 tsi manual it has a missfire when it's cold and idle and between 1500-4000rpm when driving when the engine is warm it only seem to be very occasionally at idle ,I have code read the vehicle and no faults codes have appeared. I have tried new spark plugs.

Most common.cause of misfires on that.engine is coilpacks. Don't always throw a fault code as it depends on the frequency of the misfire and whether the.lambda probes detect the unburnt fuel.