Grit Valve
2000 4.6 Vouge
Jesus you're thick. Put the key in the ignition on a car with the coil and watch the LED on the Friggin Fob Flash as it sends the code to the RF. Take aerial wire off on later cars and it doesn't always work, likewise if the receiver is picking up crap it doesn't work. All it does is replace a push of the FOB button. You can chuck the coil away and still resync by pressing a button.
The other reason later cars have less problem is because they have the MK2 receiver.
Yes data I'm a 4x4 plank and my battery is still fine scare Monger