Have a 91 Hf CRX with a 98 B20b in it. Lately it's been acting up. I will start to go in first and it will bog down and stutter until I get to about 4500 rpm, and then it will romp on it. When it's bogging I can only scoot around like a slug until it picks up at 4500 or I put in the clutch and tap the gas about 5-6 times until I can get the rpm's up to 4500, and then I can let off the clutch and go like normal. Sometimes it will do it in second gear also, but it hasn't done it in third gear yet. A friend of mine said that it could possibly be the IAT, so I I went and got one from Autozone, but I still have the same problem. I noticed that if I don't let the RPM's drop below 1500-2000 it won't do it. So I have been driving it here and there and when I come to a stop light I have to throw it in neutral and use my left foot to brake and keep the RPM's up until I can go again. All my grounds are for sure good. Any help is appreciated.