DWS6
May 1st, 2006, 10:58 AM
I have done the auto VE and things in my ve map were clearly out. So I followed the tutorial and was just finishing things up when I noticed when I went back to look at my VE map, the numbers around idle were still 1.02. I checked my STFT and they were -11. I tried adjusting till my STFT got to -4 and then my VE map was 1.04. Seems as though this is backwards. Should I not worry about the STFT at all and just AUTOTUNE VE. Negatives indicate rich and subtracting fuel and anything above 1.00 is lean correct? I did adjust the VE table untill my STFT were -3 and hooked the MAF back up and Calibrated that by logging the values, averaged them in Excell and then pasted back to MAF calibration table, is this correct?
Now the car has a few dead spots in the powerband off idle to 2200 rpm. Not real bad just a small studder, Feels like a hesitation. Everything was fine until I hooked the MAF back up.
Am I supposed to adjust desired airflow, Cracker and Follower tables while in SD or should they only be adjusted after the MAF is hooked up. I adjusted everything and got it running like silk in SD so the only veriable was the MAF sensor but now I can't seem to get rid of the dead spots (kind of like a miss, or a hesitation/studder). Everytime I log the MAF values they get higher I am at like 11.7 at 1875HZ. Also the car wants to keep trying to stall when stopping (surges 2-3 times before finding idle) which I know is in the cracker/follower tables but it was fine SD and before autoVE. Do these tables only get affected when the MAF sensor is hooked up?
Should I readjust to MAF? What does raising the values actually do in the MAF table. Richen the mixture?
Lastly I am afraid to rev to hard or to high while SD with the blower. Is the 15% increase to the VE table enough to compinsate to 11.2 AFR without PE or MAF? The AFR doesn't show to drop below high 12's. Will doing a 30% increase to the VE table change how Autotune works? I would not think it would matter correct.
Any insite you guys could shed on this would greatly be appriciated.
Thanks,
Dave
Now the car has a few dead spots in the powerband off idle to 2200 rpm. Not real bad just a small studder, Feels like a hesitation. Everything was fine until I hooked the MAF back up.
Am I supposed to adjust desired airflow, Cracker and Follower tables while in SD or should they only be adjusted after the MAF is hooked up. I adjusted everything and got it running like silk in SD so the only veriable was the MAF sensor but now I can't seem to get rid of the dead spots (kind of like a miss, or a hesitation/studder). Everytime I log the MAF values they get higher I am at like 11.7 at 1875HZ. Also the car wants to keep trying to stall when stopping (surges 2-3 times before finding idle) which I know is in the cracker/follower tables but it was fine SD and before autoVE. Do these tables only get affected when the MAF sensor is hooked up?
Should I readjust to MAF? What does raising the values actually do in the MAF table. Richen the mixture?
Lastly I am afraid to rev to hard or to high while SD with the blower. Is the 15% increase to the VE table enough to compinsate to 11.2 AFR without PE or MAF? The AFR doesn't show to drop below high 12's. Will doing a 30% increase to the VE table change how Autotune works? I would not think it would matter correct.
Any insite you guys could shed on this would greatly be appriciated.
Thanks,
Dave