ok car is 93 del sol. has a 94 acura integra motor. ls. has oxygen sensor and cat for the motor. both are brand new. as in less then two days old. problem is car runs to high of nox. running around 2000 but supposed to be around 900. if i drop my timing as low as i can i can get it around 1600. any more ideas on how to drop it. also i am running a pr4 ecu.