Hey guys just got a ? here...WHen im driving and its ususally after i just started it, im driving in like 2nd gear or 3rd and i either put it in neutral or put it in first gear and well my rpm's drop all of a sudden sometimes and it wants to die but then goes back up. so i dont know if this is normal or whats cuasing this...and one more question the tranny fluild in my car is 75W-90 but i wanted to know what type of synthetic oil to put into it like what brand and etc....thanks guys!

 

BAC? That's what it sounds like.

 

mods??

 

sorry but what is BAC? and my mods are APexi power intake, downpipe, act street strip clutch, greddy turbo timer, apexi power fc with commander, apexi n1 catback exhuast...

p.s. car has 37,050 miles on it....

 

has it always been doing this? it is starting to get colder out so i would think it is a temp/fuel correction setting. it only does it when it is cold after the car warms up it is ok? or the air bleed may need to be adjusted a bit

 

It could be your idle adjustment screw right next to the throttle cable (I can't recall the proper name), if it’s backed out to the point where it isn't snug. Symptoms similar to those you described can occur. If this is the case, it should get progressively worse.

 

https://www.rx7club.com/3rd-gen-archives-73/weird-idle-fluctuations-when-1st-gear-305989/

 

Try this:

https://www.rx7club.com/3rd-generation-specific-1993-2002-16/car-stalling-during-warm-up-any-ideas-320217/

 

Yes it is starting to get colder outside now and its only when the car is cold to warming up..it has never acted up when the car is warmed up.

 

mine did the same thing when i did my motor. It would only do it if the air was off. KD said it was the BAC but it went away or i just always left the air on.