hi, i have a 98 civic ex coupe, just had a major service at honda. its like -30 degrees outside. Today i was driving to school, and i drove down the heated underground parkard, left the car for about couple hours, then when i start up the car, the idle was like the car is about to stall then idle jumps up, i barely need to turn the key, i just turn the key, and it starts up weirly. it starts ok when i just park it outside, but when its heated parkard, it starts not normal, doesn't sound normal. Honda said its might be the map senor the the ATV sensor. can anybody help?

this also happened today too, while driving home, when i step on the clutch, the clutch isn't jumping back up fast, its flex back slowly. but then it was ok after a 15mins drive, then it happened again lately today, clutch is ok and then suddenly the clutch flex back slowly. can anybody help?

Thanks you!!