Car wont stay running

[CJ_Boxster]

Just got my car back lastnite from the dealer after they replaced the MAF. I noticed 3 key things about the drivability of the car that were different, 1...I didnt have to tap the gas between shift to match RPM's, its pretty smooth transition without having to bump the throttle now.

2, The engine stays WAY cooler now, the engine temps lower and are always touching the 8 now...Before the temp was always touching the 0.

and 3. Feul mileage, its alot better now.

I think the engine temp drop is cause the faulty MAS was sending an air temp reading of -40 degrees while it was malfuntioning so the engine would run hotter cause its thinking its freezing outside. If not, oh well the cars great now.