GTi-R running rich !Help!

[Epic_SE-R]

I have a GTi-r Sr20det in a 92 Sentra se-r. Stock GTI-R ECU with the SE-r Harness.Stock MAFS, stock injectors(cleaned and leak tested) GTi-R resistor packwalbro fuel pump, z32 fuel filter, and an adjustable fuel pressure regulator(set at 36 psi).Thermal intake gasket, front mount innercooler, HKS BOV.vacuum is at about 15 psi and Idle is just under 1,000 rpms (its turned all the way down, which doesn't seem right)I have a A/F ratio gauge with a dedicated o2 sensor (its always on the last or second to last rich bar, unless you rev it up in which it bounces back and forth once when the throttle is let up)no codesruns good and strong, just really richblack smoke and black crap on the groundI am thinking its O2 relatedcould a bad O2 be causing this?

[RED_DET]

I find it hard to believe it is running rich with that fuel pressure. That isn't even 3 bar pressure, which is what stock should be. You need to adjust the fuel pressure accordingly, the ecu maybe trying to compensate for the low pressure. Fuel pressure should be 42-44 psi with vacuum line off and capped.

[Epic_SE-R]

the fuel pressure is set to 36 psi with vacuum hooked up (42 psi without it hooked up)I drove it around today and the vacuum is at 18 ish psi at idle.it takes a little while for the idle to drop back down, after coming to a stop it hovers just under 1,500 rpm and slowly drops down to just under 1,000,Is that normal?

[Epic_SE-R]

I have been driving it a little today and at first the idle would come back down to just under 1,000 rpms. now it stays steady at 1,500 rpms.

Could this be a temperature sensor problem?
Modified by Epic_SE-R at 10:02 PM 3/23/2010