Looking for some help, this has been an ongoing problem but one that seems to be getting worse this is a 79 RX7 original engine BAE turbocharger, mileage 19,400 when cold starting pull out choke when choke returns car stalls (every time) idle fluctuates then
smoothes out. When decelerating and clutch is pushed in and RPMS begin to drop coming to stop sign or traffic light stalls out. Is this a vacuum leak or anti-afterburn valve or both sure could use some help.

 

sounds like something simple.... so check the easiest and most obvious first. check fuel filter and pump, and then check your timing... and then go ahead and look for a leak.
i am suggesting this, cuz i had a similar problem, and i went through everything.... except replacing fuel filter, and checking the pump, and guess what it was!!!!
hope this helps
jeff

 

Thanks for the reply but I have recently replaced the stock fuel pump with the Holley Red, Holley high pressure fuel regulator and two billet 40 micron bi-directional fuel filters one before and one after the pump no difference in stalling before new pump or after but thanks for the reply.