stft ltft and maf scaling help needed.
#1
stft ltft and maf scaling help needed.
Ok I have about 3 decent length datalogs. And on 2 of those at idle I'm at 7gs. And I know the recommended is 5.5 but on my last log. I'm right around 5.45-5.6 at 800-850 rpm. So shook I adjust my scaling or leave it be ?
Also on my stft and ltft I'm in the 22 and -22 range to me this doesn't sound right , isn't it supposed to be closer to 0 ? And my air/fuel is around 14.6. Which sounds ok
Also on my stft and ltft I'm in the 22 and -22 range to me this doesn't sound right , isn't it supposed to be closer to 0 ? And my air/fuel is around 14.6. Which sounds ok
#3
rpm maf stft ltft load
832 5.49 22.656 -22.656 38
855 5.45 22.656 -22.65 37
889 5.63 25. -22.656
I know this isn't much but it was my quick log
It doesn't seem to be going from positive to negative it's pretty consistent. I have a aem with 2 screens inside
832 5.49 22.656 -22.656 38
855 5.45 22.656 -22.65 37
889 5.63 25. -22.656
I know this isn't much but it was my quick log
It doesn't seem to be going from positive to negative it's pretty consistent. I have a aem with 2 screens inside
Last edited by nlsolja123; 10-21-2014 at 09:18 AM.
#5
ok i did that, and retested over the course of 2 days worth of driving. my log from last night are pretty different. im getting -14 to -21 ltft at all times. my stft is -16 to +23. its looking like im about -20 at idle combining the trims. and around -10 under slight load
heres the zip with the log inside, its a tactrix log so im not sure if you can check it out or not
heres the zip with the log inside, its a tactrix log so im not sure if you can check it out or not
#6
SARX Legend
iTrader: (46)
Based on your other thread it seems that you may have an O2 sensor problem (likely your stock O2 since I assume the AEM is new) so I would not continue tuning until you get that sorted since O2 readings you are using to tune are from the stock O2.
#7
Got a used sensor from a wrecked rx8 at the jy. It seems the aem wideband is junk. It's about .5 to 1.0 off. It only reads the same as my stocker at wot
I have rewatched some of the tuning videos again. Mainly video 3 I changed my injector scaling to 386.53 and my lt is 0 and my short term is around -/+ 5. Should I leave this be?
I have rewatched some of the tuning videos again. Mainly video 3 I changed my injector scaling to 386.53 and my lt is 0 and my short term is around -/+ 5. Should I leave this be?
#8
SARX Legend
iTrader: (46)
Got a used sensor from a wrecked rx8 at the jy. It seems the aem wideband is junk. It's about .5 to 1.0 off. It only reads the same as my stocker at wot
I have rewatched some of the tuning videos again. Mainly video 3 I changed my injector scaling to 386.53 and my lt is 0 and my short term is around -/+ 5. Should I leave this be?
I have rewatched some of the tuning videos again. Mainly video 3 I changed my injector scaling to 386.53 and my lt is 0 and my short term is around -/+ 5. Should I leave this be?
I would still get a new O2.
#9
Just wondering. On the fuel trims I'm guessing I need to scale the injectors. What's the typical range stock injectors should be scaled to. I know everyone is different but I got mine at 387 and that gives me a Ltft of 0 and short term is kinda high . Does this seems to much ?
Last edited by nlsolja123; 10-29-2014 at 09:34 AM.
#11
I Did not. I am doing that at the moment and returned to a stock flash withonly omp adjustments.
Going by the tuning videos, i misunderstood and thought since my idle is at the correct 1.21volts at 5.4 g/s that i didnt need to do this. now i understand i need to go make some 2nd gear slow pulls, and look at my fuel trims and scale it from that % of deviation.
this is correct right?
Going by the tuning videos, i misunderstood and thought since my idle is at the correct 1.21volts at 5.4 g/s that i didnt need to do this. now i understand i need to go make some 2nd gear slow pulls, and look at my fuel trims and scale it from that % of deviation.
this is correct right?
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