Frustrated with SAFC+Pocketlogger tuning

[Drewcool2]

I'm frustrated with tuning here. Here's my setup:
ETE32 50-trim turbo@15 psi
RC550's
Fuel pump
Aeromotive FPR
3" apexi turbo-back, no cat
Apexi FMIC w/ piping
Centerforce DFC
Stock 7bolt
new BPR7ES gapped at .030 in, with new magnecor wires.

My low throttle settings are about
1k -3%
2k -7%
3k -14%
4k -17%
5k -18%
6k -18%
7k -18%

High throttle is about -21% across the board. When I do a high throttle 3rd gear pull, my timing is all over the place, but seems to accelerate nicely.

This is with my 550 injectors installed and a brand new bosch o2 sensor. What I don't understand is my LTFT's are always around +12%, and STFT's are always varying from 0% to +17%. It’s like I may as well just almost zero out my safc. But when I do, it runs much much worse. I know I should be leaning it out at least -15% on the safc, but my computer doesn’t seem to think so. It just adds a lot of the fuel back in making it run richer. This is even after I reset the ECU. The only thing I can think of is a faulty O2 sensor. Is it worth going and getting the OEM sensor? Any comments/suggestions?

Or does anyone have a similar setup that could give me their good safc settings?

What are some good places around PA/NJ/DE area that would tune with a SAFC? And would they typically put you on a dyno, or road tune it? Is it worth the cost?

Thanks

 

[92awddsm]

Bosch sensors are junk. Go to www.oxygensensors.com and get the denso sensor. It is the oem mitsu sensor and will work better and last longer. It is more $ but it is woth it in the long run.

 

[Drewcool2]

ok, just ordered one from there. You think that is why it would be doing this?

 

[92awddsm]

Its a good possibility. I made the mistake of buying a bosch and had some similar problems. I have heard of others that have had problems with the bosch o2 sensors.

 

[kpt4321]

Do whatever the ECU tells you to with the fuel trims, in terms of tuning the lo throttle map. Get the right O2 sensor in there first though.

 

[Drewcool2]

Ok, got the new O2 sensor in there. After playing with the low throttle fuel trims all day, these are my new settings. Still very screwed up...
1k +6%
2k +11%
3k +11%
4k +12%
5k +11%
6k +11%
7k +10%
8k +11%

This almost zeros out my LTFT's and STFT's. Why do I have to add so much fuel with RC 550's in there!! Could the SAFC be hooked up backwards somehow?

Here's my High Throttle settings:
1k -18%
2k -20%
3k -20%
4k -20%
5k -20%
6k -20%
8k -20%

Funny cause this is the complete opposite. Here are 2 high throttle runs (2 different days) I made with these settings. (see the picture attached)

Can someone please help me figure out whats goin on, or if you have any suggestions at all?

 

[Drewcool2]

Update...
After more driving, and more tuning here are my new low-throttle settings:
1k +6%
2k +7%
3k +6%
4k +6%
5k +5%
6k +6%
7k +5%
8k +6%

This is a little leaner than earlier, but I still think it is weird I have to add fuel to my STFT's with 550's.

I realized it runs better when I zero out my fuel trims with the above settings, as opposed to just having my original low throttle settings with my STFT's at like +17, and LTFT's at +12:

--Original low-throttle settings-- (these settings came from tuning with a wideband, while car was stuck in open loop mode because of a broken O2 sensor)

1k -3%
2k -7%
3k -14%
4k -17%
5k -18%
6k -18%
7k -18%

So now, even using 2 different oxygen sensors, I have to add fuel to my STFT's


Anyone else have to add fuel to thier STFT's with bigger than stock injectors?