Terrible idle

[slow gst]

The car has been running really bad at idle since i bought it 3 months ago. I installed all new dejon powerhouse intercooler pipes and a 1g bov with a stop leak kit. I also recirculated it and it still runs like shit. I changed the plugs I'm not sure if changing the wires would do anything but it seems like its misfiring but I do not have a check engine light. Any advice is appreciated.

 

[Spoolin18]

Start by elimanation. Check the plug wires, coil, etc...is it just at idle?

 

[slow gst]

Yes it's only at idle once you are on the gas its fine.

 

[djordan97]

does your idle surge or is it a stable rpm and just rough?

 

[slow gst]

At first the rpms go up then it just drops below 1 and stays around there.

 

[odysseybiker1]

This should help.
2G BISS Adjustment

And how long does it stay high? It could be just warming up. And according to vfaq idle should be around 750 +/-50

 

[LiquidX]

Since you altered your intake line, did you do a boost leak test?

 

[slow gst]

Well eventually the entire car just stalls out. I have yet to run a boost leak test but would boost leaking cause the car to idle so bad?

 

[LiquidX]

Pulling in unmetered air will cause the car to not run properly. All depends on the size of the leak. If you want to test it, unplug the MAF. The car wants to stall because all of that air is unmetered (boost leak in vacuume).