hi can anyone give me some advice on how i change the map sensor in my megane, its a 2003 03 plate megane 1.6 16v cabriolet, iv got everything stripped off around the air system but cant seem to get the black plastic casing the sensor goes into off the car, quite new to these cars so dont want to keep pulling etc incase i break something, it pulls forward slightly but looks like there some sort of piston or something inside stopping it from lifting off any help is much appreciated thanks
