well i have a hesitation at 1900 rpm i searched around and couldn't find anything around this range of rpm.

i have checked and cleaned grounds added new ones.

mods are full emission removal and i basically have nothin on my engine no power steering air cond. ect.

anybody know whats wrong?

 

More details please:

Light throttle, medium throttle, full throttle, etc.? When it's cold, warm, all the time? Any other things that relate to when this happens?

Are you running the stock ECU? I assume this is an FD?

 

light throttle when im starting from a stop it starts to happen...its happens when it is more warm and stock ecu and thats about it.

 

This may relate:

https://www.rx7club.com/showthread.p...ty+improvement

 

ill check my tps i dont have any secondary throttle plates and i just got a new o2 sensor....

 

If you have an FD, you have secondaries - you may not have the double-throttle setup (it can be removed), but you have to have secondaries. There are 3 throttle bores. The one on the bottom is the primary. The two on the top are vacuum/linkage operated secondaries.

 

oo ok ill check those too......