Tuner_13BFC
05-17-2007, 07:07 PM
ok here the deal my buddy has a 1988 RX7 NA he has had a upgraded exhaust for a year now but now all of a sudden he is blowing flames which any rotary head know is kinda hard with a cat an as soon as he started blowing flames his aux port are failing to open now my thinking is that he has blown his cat an since he put a test pipe for his precats he is now building enough back presure to open the aux portsthat open of the back presure of the exhaust 5-10 psi could any one help me out and also how do you reset the ecu in the FC S4 any way cus he has been rideing around with it lie this for a while anit may need to relearn.