Hey everyone I am new here. I am 17 and just purchased a 2000 Coupe with the F23. The car has been running pretty good up until last night when my engine light came on. I have had a minor issue with the Vtec truly hitting or slowly kicking in till 5-6000 and it would just hit hard (this wasn't always". Anyways I am now having the problem that when I hit 4000 Rpm's it will basically sound like the car is redlining. I thought at first it was just because it is cold but I warm my car up everyday before I start driving. The temperatures are roughly -15 Celsius (yes I am from Canada). Any input would be greatly appreciated! Thanks!