Gti6 emissions

[martyn92]

Change the coolant temperature sensor (green one) and take it for an Italian tune up

I will go and get one tomorrow just in case. Im sure its working because of the readings from multimeter and when I unplug it, it struggles to rev/run properly.

So assuming its not the cts what else is the likely culprit? It doesn't seem down on power but doesn't seem as responsive as it used too. But not sure if thats just me because ive got used to it? (only had it a few months)

Between 2-3000 rpm you can feel the whole car shaking and hear a pop/burble every now and then

It used to idle at 500 rpm for a few seconds when starting from hot but soon went away, not familiar to gti's so assumed it was normal