okay i own a 1987 S4 RX7 non turbo and one day i turn it on and sounded like if it was flooded and when i rev it it only went up to 4k and struggles to go any higher and sometimes it wants to turn off and i hear popping noise from the muffler and sometimes from the intake which was weird i dont know whats wrong im still new with rotarys

 

i own a 87 S4 na rx7 and it sounds like if it flooded but with popping noise and it wont pass 4k in my rpm and gots lack of power and it sound like it wants to turn off

 

1. Low compression
2. Plugged cat
3. Secondary injectors disconnected / not firing

 

i dont think its the cat i took that off already n it still does it so it might be the other 2

 

o by the way whats the compression 3 has to be?

 

Minimum spec in the FSM is 85 psi @ 250 RPM, but ideally you'll want it around 100 psi.

 

ok thanks bro ill check it out

 

89 fc3c conv. sat 5 years. removed and cleaned fuel-tank, replaced fuel pump, replaced transmission oil lines that were leaking. my car will not accelerate after reaching between 3000 to 3500 rmps. if I butterly and slowly push the gas it will finally get up to 55mph and above but will not advance unless gas is very lightly applied. please help. Thanks, kev

 

ur fuel fillter might be clogged or dirty cuz thats wat mine had