So whenever my Z is revved, or I throw in my clutch to stop coming out of a mid-ranged RPM (3-4K), my RPM's will fall to idle like they should and 7/10 times will dip below the idle range and cause the car to shudder a little. the RPM's come back up after maybe a half second, but it still doesn't feel good. I was thinking that I might need to replace the injectors.. But since the fuel system has many components, I wanted to get some other opinions before I jumped into the "deep" stuff. It hasn't been getting any worse, but its kind of consistent. Any suggestions?

 

Age of Z/mileage? Mods?

 

2004, 78K, stage II clutch.

 

My popcharger used to cause this when I came off the throttle quickly. Maybe a MAF issue?

 

Clean your maf.. might fix your problem.

 

i have the same issue.... except im boosted target idle is 1000rpms dips to about 350 and comes up..