Hello i have a 2008 evo x i have been having a Very shaky idle it jump up and down! it kinda sound like i have cams but i don't lol!... i haven't got the car tuned yet just was wondering if anyone can help! i do have a HKS blowoff valve on there!

 

swap bov's to the stock one and see if it fixes it. also check for any leaks in the pipes, have you gotten the dealer reflash for the idle and hesitation towards redline?

 

im gonna put the stock bov back on! but i never had this shaky idle before it sounds really bad! i have tryed to clean the the mas airflow sensor no help


dealer reflash for the idle and hesitation towards redline? no i haven't

what the best way to look for leaks?

 

my mods are
ams intercooler
Ams intercooler piping
ams intake
greddy downpipe
test pipe
ets exhaust
exedy twin disk
and the hks blowoff valve vta!

 

the vta may be what is upsetting ur idle..see what replacing the stock bpv back on does. if the idle is corrected than u should get a recirculating kit for the hks bov..u should have a recirc bov on the car anyway.

 

Im gonna switch it back to normal with the stock bov. anyone have instruction on install the Recirculating kit for hks bov using the Ams Intake! cause right now i have the hole plugged.

 

i suggest checking the vacuum hose that is right next to where you check the oil. It solved my idle problem.

 

My idle does this with no mods. Worse when car is cold on a hot day with A/C on. I have the newest factory reflash also. Once it gets warm it never does it regardless of conditions.

 

I have had this happen to me too. When I first start the car in the morning to go to work, it will jump up and down until the car is warmed up. It never happens any other time but in the morning when the engine is cold.

 

I am now currently experiencing this same issue..... It has popped up out of no where.... I am tuned, and it has been jumpy for the past 4 days....really annoying.

I will snoop around my engine bay tomorrow and see what it could be.

John

 

I had a crazy jumping idle on my X MR a while back and I was stock except for Cobb AP. Took it to the dealer and had their "reflash" and it fixed it.

 

yea i have a 2008 X and its idle jumps from 700 rpm to 1200 rpm, my car is stock so i dont thinks its your blow off

 

i check the hose to the fuel pressure reg and found out that the hose had came off. that was what fixed my problem, Thanks all to helped out!

 

Checked mine this morning..... SAME THING!!!! Problem solved.....

Feels great again! yay

{thum bup}