How to I correctly re-install
well all connections for the electrics should be outside the air pipes ,because how else can the assembly line workers do their job ,so it has to be simple .Now as for cleaning the butterfly ,well stop reading these so called workshop manuals and think that you have clean everything in sight ,well take it from someone who repairs cars every day and that is if it works ok leave well alone ,change the oil every 6000miles use the cheapest you can buy and change the oil filter every thrid oil change,auto box ?' dont touch for a TRANNY FLUSH ,it should run for ever till the brake bands wear out.Now as for your problem with the air flow valve ,the sensor part is on the inside of the pipe and the electrical plug on the outside ,so sleep on it then in the morning have your cofffee and a ciggy ,cough a bit then have another look and all will be revealed .How you managed to reconnect the sensor inside out i will never know ,Right service interval 6000 miles ,change oil ,check gearbox oil level with engine running in reverse and chocks under back wheels,inspect brake pads ,clean out air filter with a air line ,top up washers ,check plugs are withing 25/30th with no yellowing around the insulators.fuel filter?' dont kid me your gas station pumps do have filters inside them i hope so fuel filter should last life of car ,oil door hinges and the click bit on the end of the door with proper engine oil and not that silly spray ,check rasd and top up with neat antifreeze ,change antifreeze every five years or so .check the lights --all of them including fog light ,get assistant to wiggle steering for you and check ball joints ,jack up and use a crow bar to check track control joints ,take for a road test to the local cafe for tea and some grub ,and thats about it ,do not go looking for things to do untill it goes wrong and throw them sill haynes and chilten books in the back of the garage till you need to look at the pictures