If I go for more than 20-30% throttle it starts to bog down and I lose rpms quickly and almost stall, but if I知 driving loosely and not giving it much throttle I知 alright just takes forever to get up to speed. Any idea on what might be the problem?

 

What car

 

1996 rx7

 

Check for blocked cats.

 

Check your fuel pressure. Sounds like it's running out of gas. Could also be the secondary injectors not working. Checking fuel pressure is easier