Ok, i admit it, I need some tuning help.

[disco stu]

Here's what is going on. First problem, BLMs are too high at idle, 160 always. I've searched and read posts I've found, but still need some help.
TPS: .4 at idle
RPM: set at 850 as programmed in chip
IAC : 30's
Inj. DC at idle 2.5%
MAF: 2 grams (extender, double MAF value?)
cross counts: in the hundreds
translator 2.0 idle settings: tried all three for 3"er, best at 5, 25% rich

At cruise BLM's seem normal. I've checked for vacuum leaks found none. I might try a factory pcv, as I am using a viton check valve. This might be part of the problem, but the tune sucks at WOT as well. Something going on here. Fairly fresh engine, could never get everything perfect with old engine either. Same combo except chip and injectors.

Now, WOT short bursts, 18#s, SMC full spray 100% denatured, 45 PSI static (tryed 47, no change), O2s start low 800s, quickly drops low 700s, then I lift. No KR, except transitional a couple times. Priming the alky seems to prevent that.

o2s: low 700, high 600 a couple times
inj pw: 64%
FP: 65 psi
MAF: 130 to 140 ( still more confusion on how extender reads here:2X's?
LV8: 204
advance :23%
calculated a/f ratio : 12.5 (DS)

Combo: Te52, Ep fm, ported irons, ATR roller, 50# injectors, double pumper, extender/ translator 3" maf, and SMC.

There it is. What am i missing? Need your help on this one guys.
TIA.

 

[disco stu]

OK, gonna put a PCV back in. More critical than I thought. thought the ATR check valve was a direct replacement. On the car when I got it. My mistake. I'll see if that brings my BLM's down.

But I still need your help guys

 

[NC87GN]

I have gone through similiar things with an extender chip. 1st thing to verify is voltage at WOT. Triple check that the volts are at least 13-15V WOT to those pumps. Do not play around with rail FP. Keep at 45 static +/- 1psi. WOT FP set to max % (in Translator box) until 02's are 750+ in 4th. If it spits back go one click leaner. As far as MAF reading idle and WOT, it looks good. It was frustrating until we recieved a talored "extreme" chip from ramchargers.

You may wanna upgrade the translator to a translator plus with an extreme chip. Its not much to upgrade the box. If you still experience low 02's at WOT you might wanna call ramchargers and send your DS files to talor a chip.. HTH

Mike Banas
87GN