ever since i had my parts installed my car has been idling weird. whenever my car idles the rpm would drop to around 500rpm then back up to normal. whenever this happens i see the vacuum goes up to around -15 then back to normal. i got tuned the day after the parts were installed so i figure the problem will go away but it is still there. my car runs fine and im boosting normal but its only the idle that bothers me. does anybody know what the problem might be? im using my stock jdm mr dv btw and my mods are intake, fuel pump, tbe, and mbc.

 

am having the same problem with my car but i was just thinking it was cause of the cam's i but in the car.

 

I would say if you didn't have a tune its the intake but since you have a tune its hard to say.Have you gone back to have the car tuned again?

 

well if ur blow off is atmospheric and u still have a maf sensor...then that could be ur prob...my friend was having a similar prob, as well as my bro...so we talked to ams and they said atmospheric blow offs have that problem wit a maf sensor on the car, so we recirculated the blow offs....been perfect ever since

 

Well he is running the stock MR DV and as long as its recirculated than thats not the problem.HMM????

 

I have a similar problem (maybe it isnt' a problem ) I have comp 280's and my car vac's at 15 normally but every 30 seconds or so lopes hard and hits 11 or 10 vac, the idle rpm doesn't necessarly drop during this time. turbo xs h34 full recirc dv.

 

its not the cams...unless i missed something in his post that he has it...

intake is my guess...is your car tuned for it...and which one are you running

 

yes my car is tuned for the intake and its the hks intake.

 

And that is your problem.

 

Are you running the air conditioning???? That will do it.

 

you serious? so everybody with the hks intake has this problem?

 

my firend has the hks BOV and he got the recirculating kit and its fine....and ams said a tune wouldnt do it

 

and I like kitties. WTF are you talking about?

 

I've heard a few problems about the HKS as well.

 

ive heard problems with hks as well, but have heard problems with a lot of intakes out there too