i have a 1997 Acura integra gsr with a drag stage 2 turbo kit. have to get emissions done but have check engine light. hooked up scanner to car and reads a p1508 code meaning Idle Air Control Valve Circuit Failure replaced with a new one and erased the code and check engine light. after car was warmed up the check engine light popped back on the car runs alot better but still cant figure out what is wrong