I have found that here in NE AL which is some what hilly I find a streach of road that has a good bit of hills and drive with the cruise off and in 4th gear (I have an A4) and monitor the LTFT while going up these hills and holding the throttle at ABOUT 20%. Now if you dont have hills you can find a streach of open road and hold the throttle again at ABOUT 20% and monitor.
I tried to do my monitoring in 3rd gear but to reach 20% it brought the rpm's up to high and my 3rd gear was yelling at me.
You basicly want to have a little load on the engine is why your trying to reach that 20%
AFM and LTFT's
RE: AFM and LTFT
04 GTO 5.7 A4, K&N drop in w/mod'd airbox, SLP LM2, JBA Catless Mids, P&P TB, Lightly Ported MAF(.040) Then Polished & Descreened, MSD 8.5 super conductor wires, AC Delco Iridium plugs, U7193 Predator(tuned by me)
RE: AFM and LTFT
Ok, the road I was on was pretty close to flat, with minor up hill grades and down hill grades... I'll try and watch it and do what your saying. It would be easier if someone was with me, but I don't have that option since my wife doesn't care... 
I was watching the log and driving all over the road 
I wish I had someone closer to help monitor and give some good advice.
Steven
I was watching the log and driving all over the road I wish I had someone closer to help monitor and give some good advice.
Steven
2007 GMC Sierra SLT Vmax. 4.10 gears, Bedrug, Boss MT100 20x8.5 wheels/Kumho STX tires, Extang Bed cover, Light of fire, Denali Grill, GM Performance Intake and DiabloSport
RE: AFM and LTFT
If you have a cell phone that can take flix's, you can do that too. Mine only take a flix for about 15 sec's so I do multiple ones then I send it to my computer via messaging from my phone. And then I can watch it once I get home. Make my adjustments and head back out. OR just watch the flix while parked in my car and make the adjustments and continue driving. Just some ideas for ya.
Remember you want to try to reach 20% and also have your rpm's about 2200-2500. If you can do it in high gear without disengaging the TQ convertor great.
I have found that my car dosnt like the 3rd gear thing, and with the rear gearing(stock) in my 04 GTO it puts the rpms to high in 3rd.
Just try to find the happy medium.
Remember you want to try to reach 20% and also have your rpm's about 2200-2500. If you can do it in high gear without disengaging the TQ convertor great.
I have found that my car dosnt like the 3rd gear thing, and with the rear gearing(stock) in my 04 GTO it puts the rpms to high in 3rd.
Just try to find the happy medium.
Last edited by 1st6.0GTO on Wed Mar 19, 2008 8:01 pm, edited 1 time in total.
04 GTO 5.7 A4, K&N drop in w/mod'd airbox, SLP LM2, JBA Catless Mids, P&P TB, Lightly Ported MAF(.040) Then Polished & Descreened, MSD 8.5 super conductor wires, AC Delco Iridium plugs, U7193 Predator(tuned by me)
RE: AFM and LTFT
your "commanded throttle position" or "accelerator pedal position" doesn't have to be right at 20%... it has to be AT LEAST 20%, but can be more as long as your driving steady...
06MonteSS / DiabLew Tune
2014 Camaro SS - 2SS, RS pkg., short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com -- www.diablocustomtuning.net
2014 Camaro SS - 2SS, RS pkg., short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com -- www.diablocustomtuning.net
RE: AFM and LTFT
I know with mine in 4th gear and at 20% throttle(say climbing a slight hill) Im sitting at -.78 on both banks. Now at interstate cruise at at 75-80 and about 15%-16% throttle the trims will vary. And as much as +/- 3-4%. I found this out not to long ago, cuppled with the fact that I think I was running a tank of gas with E10 in it realy threw things off.
04 GTO 5.7 A4, K&N drop in w/mod'd airbox, SLP LM2, JBA Catless Mids, P&P TB, Lightly Ported MAF(.040) Then Polished & Descreened, MSD 8.5 super conductor wires, AC Delco Iridium plugs, U7193 Predator(tuned by me)
RE: AFM and LTFT
" To compensate for the added fuel when going into open loop or power enrichment, it is also recommend subtracting that same long term fuel trim percentage to the PE vs. RPM table."
Lew this is from your info you posted. I thought that if you go - on the slope, you would want to go + on the PE. Your info is saying otherwise?????
Lew this is from your info you posted. I thought that if you go - on the slope, you would want to go + on the PE. Your info is saying otherwise?????
04 GTO 5.7 A4, K&N drop in w/mod'd airbox, SLP LM2, JBA Catless Mids, P&P TB, Lightly Ported MAF(.040) Then Polished & Descreened, MSD 8.5 super conductor wires, AC Delco Iridium plugs, U7193 Predator(tuned by me)
RE: AFM and LTFT
1st6 - answered/discussing with you in your other post/thread...
06MonteSS / DiabLew Tune
2014 Camaro SS - 2SS, RS pkg., short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com -- www.diablocustomtuning.net
2014 Camaro SS - 2SS, RS pkg., short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com -- www.diablocustomtuning.net
Steven,
Do you have a laptop?
Can you borrow one?
That is the absolute best way to log. You simply plug the Predator into the port and then plug the same cabel you use to update the predator into the bottom of the predator and into again the laptop. Startup the version of Dataviewer downloaded for our truck type. Click the little lightning bolt near the top after it says it is connected and the vehicle VIN information is displayed on the screen.
After that it should take you to the record area.. You want to select the items you would like to log (have to hunt for the ones through all the options in the upper left pane of the left panel). After selecting everything you would like to log then press the red record button at the top and make your runs. With the lappy you can log for quite some time. The more samples you take the higher the accuracy of the average.
Hope that helps..
Do you have a laptop?
Can you borrow one?
That is the absolute best way to log. You simply plug the Predator into the port and then plug the same cabel you use to update the predator into the bottom of the predator and into again the laptop. Startup the version of Dataviewer downloaded for our truck type. Click the little lightning bolt near the top after it says it is connected and the vehicle VIN information is displayed on the screen.
After that it should take you to the record area.. You want to select the items you would like to log (have to hunt for the ones through all the options in the upper left pane of the left panel). After selecting everything you would like to log then press the red record button at the top and make your runs. With the lappy you can log for quite some time. The more samples you take the higher the accuracy of the average.
Hope that helps..
With the U7193 you can datalog. Meaning storing a log in the Pred, then send it to your computer. That is why I sujested using your cell phone to take a Flix or Pix while at the point of you data viewing to see if your LTFT are where you want them.
I have been told that DS is in the final stages of and update for the dataloging capabilities for the U7193. I have been waiting for this update for some time.
I have been told that DS is in the final stages of and update for the dataloging capabilities for the U7193. I have been waiting for this update for some time.
04 GTO 5.7 A4, K&N drop in w/mod'd airbox, SLP LM2, JBA Catless Mids, P&P TB, Lightly Ported MAF(.040) Then Polished & Descreened, MSD 8.5 super conductor wires, AC Delco Iridium plugs, U7193 Predator(tuned by me)
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WhiteBuffalo
- Posts: 404
- Joined: Sun Feb 17, 2008 6:32 pm
U7193 logs.....REALLY?!?! Elaborate please.1st6.0GTO wrote:With the U7193 you can datalog. Meaning storing a log in the Pred, then send it to your computer. That is why I sujested using your cell phone to take a Flix or Pix while at the point of you data viewing to see if your LTFT are where you want them.
I have been told that DS is in the final stages of and update for the dataloging capabilities for the U7193. I have been waiting for this update for some time.
I would LOVE to log my AV.
When is the update due out.....thought we had to change out circuit cards???
05 Avalanche LT Z71 5.3 4.10, Volant CAI, Volant Ram Air Scoop, Corvette 2nd & Sonnax Super Hold 4th gear servo, KYB MonoMax.
no, it can NOT save a log at this point in time.... they are currently workin on updates for all of the older GM tools to get this functionality incorporated - but as of right now, it can not save logs.
you have to view it live on the screen.
you have to view it live on the screen.
06MonteSS / DiabLew Tune
2014 Camaro SS - 2SS, RS pkg., short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com -- www.diablocustomtuning.net
2014 Camaro SS - 2SS, RS pkg., short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com -- www.diablocustomtuning.net
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mooshnicka
- Posts: 8
- Joined: Sat Mar 29, 2008 2:26 am