RPM Jump when you let off the gas + Quick Fuel Pump question
 

Whenever I hit boost and I let off the gas, the RPM would sometimes jump up by 200-400ish, is this normal? A couple of times, however, when I let off the RPM is steady

Also, I picked up a stock Supra GTE Fuel pump from a guy and it had the filter on it. Should I switch the filter with the RX7 one or can I still run the Supra one?

Thanks

Anybody have any insight into this RPM Jump issue? I'm having the same exact problem right now banking my head against the wall :wallbash: trying to solve it.

i believe the RX7 filter should be used since it sits lower in the tank.

for rpm jump
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/question-about-weird-throttle-issue-782287/

thanks! Can you see the 17mm nut clearly when looking directly at the engine standing in front of the bumper? Is the dashpot/mushroom directly under the 17mm nut? I wonder what causes the "mushroom" screw thing to become tighter than needed

yes it is clearly visible , but it`s better from driver side ( US ) or passenger side ( JDM)
just follow the throtle cable and .. BAM you got it
the 17mm nut is there to lock the "dashpot=mushroom"
untighten it and unscre the dashpot 2threads... go for a drive ... still jumps ?
unscrew 1 more and so forth :

===>> If you have a light flywheel and are running A/C dont unscrew to much as you will stall on a " gear to neutral" shift and your brake pedal will be hard to press ( no more Vacuum ) ... culd cause an accident

( no it`s not a personal experience .. :) ) .... dont make it yours ;)

if you are unsure about something . before oyu do it . just ask here , PM ... or call me andill run you through it
1 514 839 3283