I just put a ZC in my 91 CRX Si this weekend. It runs great, except for a couple hicups. Sometimes when I step on the gas, the car slows down (not getting gas). It feels like I'm stepping on the brake. Also, the first time I started it, the idle was perfect (just below 1000). Now it's up to 1500 and goes upto 2000. I threw a code on the way to work, but haven't got a chance to see what it was. As soon as I turned the car off/on the engine light turned off. Could this be the TPS sensor? I heard that a lot of ZC's that come from Japan have bad TPS sensors. BTW, the car is completely stock (except for the motor). Any ideas would be greatly appreciated.