Help! RX7 ** 13B Idle problem

Need assistance please. I have an 88 13B fuel injected that has an erratic idle problem that would stay on 1300-1500 RPMS. Other that this, the car runs good. I tried looking for vacuum leaks but could not find anything. I change the fuel pump cause it died not to long after it develop the idle problem and fuel filter, and air filter .

Any suggestion is greatly appreciated. Thnaks/Ron.

My business can probably offer you some help. Give us a call. 760-949-4424 ( Krazzy Rpm Racing) Hesperia,Ca.