i am haveing problems with my 1990 rx7 when it warms up the idol drops way low and while driveing it spits and sputters like its running out of fuel i have replaced the fuel filter and ran injecter treatment though it it stalls freqently when clutch is preesed in plz respond with any info you may have thank you

 

either the throttle position sensor,

the sparkplugs and wires not likely but its possible

or you have a vaccum leak

 

thanx can you plz tell me the best way to go about finding and fixing the problem

 

First things first. Set the TPS and adjust the idle by the screw on top of the throttle body. Do these two things by the book. Then, if idle still presents problems, look to other possible causes. Vacuum leaks, faulty plugs or wires, fuel filter pressure. Even a bad ground can cause idle problems. There is no magic screw you can adjust to fix idle problems. Do some homework. Look through the posts on these forums and you'll find that the most common ailment in the RX-7 family is idle. That also means that the most advice that can be searched is idle.