GSX update

[918_gsx]

Ok, so I've had this car about 2 months now. It's a 92 gsx. Here's a list of what I've done. Emissions delete, allll emissions. Cat delete. 2.5" turboback. 8.5mm MSD wires. small 16g turbo. MBC. 3" upper intake piping. A/C condenser delete and all piping. CC delete. And alot of clean up. Here's the thing though...I have a bit of an idle issue. In park and neutral i idle fine. In any other gear, it idles down to around 400-500rpm and tries to die, sometimes does. Car pulls great with the new turbo in and I'm running 14lbs of boosts. On gauge in DRIVE, it's only reading -10hg. In park at idle, it's reading -20hg. Any suggestions?

Oh, yes, I have checked for boost/vac leaks. None

 

[99gst_racer]

What did you do with the EGR valve? Is it still installed and/or connected to a pressure source?

Automatic tranny?

Any boost leaks, particularly at the throttle body?
Have you verified that your ISC is still working? DmTaLoN's Idle Speed Control Test/Fix Page!

 

[918_gsx]

EGR is still there but capped off the ports on it.

Yes, auto tranny.

 

[99gst_racer]

The EGR will leak if it doesn't have a pressure source connected to it. I just went through this same ordeal on my Talon last week. My car was idling at 500 RPMs even though it was set for 900, and it would eventually stall if I let it idle long enough. I removed the EGR and installed a block-off plate, and all is well now.

Buy this: Talon Laser DSM EGR Delete Block off plate - 4G63 | eBay

 

[918_gsx]

Ok. I'll block it off then. Thanks.

 

[99gst_racer]

Report back and let me know how it works out for you.