My car runs fine and idle at 900 if driven normal. But after running a couple of runs @7psi, my car idles at 1500rmp and hesitates at low rpms. (sometimes would shut off).
Is it because I'm not running enough fuel? Or is it because of the ECU being confused? I"m new to the FI world so please help.

Setup: Stock Ls w/T3 turbo, Tial wastgate @7psi, greddy BOV, Vortec FMU, Inline fuel pump, AEM Fuel Rail, unknown FMIC.

 

fmu/fuel pump, turn the boost down to 5 or 6. Or get a Vafc and 450's.

 

do you have check valves or a missing link installed?

 

what plugs and what gap seeems like their fouling out richly

 

Yea, I have the missing link installed.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xaznxboixsirx &raquo;</TD></TR><TR><TD CLASS="quote">Setup: Stock Ls w/T3 turbo, Tial wastgate @7psi, greddy BOV, Vortec FMU, Inline fuel pump, AEM Fuel Rail, unknown FMIC. </TD></TR></TABLE>

I had the same problem, but then i got some fuel stuff and some tuning and everything worked perfect. On my teg, i got 310's, missing link, fmu 12:1, walbro 255hp, and a vafc. i made 260whp at like 6-7 psi.

 

Thanks for the info guys. I'll be upgrading my injectors soon so I'll keep you updated.