i have a dirt track race car its a 89 crx it has an ls vtec in it with an 94 obd1 gsr engine harness and chassis harness. the problem is that when it first starts up it runs good i can run it up and down the street but after a while it will not rev past about 3 or 4 grand. i didnt have the o2 sensor hooked up and i dont hink there is a knock sensor on the ls block. iwas running the s200 hondata system but that went out so i am running a p72 now. any help would be greatly appreciated.