Over the last winter I have put the comp tech headers and exhaust with new O2 sensors on my 91 nsx. I also replaced the stock air filter with the uni filter and cantrell scoop as well as short gears and clucth. The problem is my engine light keeps coming on... fluids are right, performance is good, the light seems to reset when I turn off the car but returns 5-10 min into the next start up. I am concerned that I may have missed something? Any suggestions ...Thomas