|
Software Tuning Discuss all software tuning topics. |
|
Thread Tools | Search this Thread |
06-24-2015, 08:09 PM | #1 | |
Senior Member
Join Date: Aug 2013
Drives: 14 Ultramarine FR-S
Location: SOCAL
Posts: 795
Thanks: 381
Thanked 413 Times in 231 Posts
Mentioned: 14 Post(s)
Tagged: 1 Thread(s)
|
Running a bit lean on WOT pull
Anyone have any ideas why I'm running a bit lean on WOT pulls? I always seem to be running ~.50 or sometimes more leaner than the command AFR on a WOT pull everything else looks good as far as fuel trims. I know I'm getting a little bit of knock but that is primarily attributed to the fact that I seem to be running leaner instead of richer.
I recently just switched to the stock exhaust manifold & I used new gaskets (used GS gaskets for the header to block). I double checked my torques when I did the re-install. Made the O2 sensors snug. Mods: K&N Filter, Catback Exhaust, OFT Stg 1 91Oct Tune Here are a few pulls... http://datazap.me/u/phantobe/stg1pul...=0&data=1-5-10 3rd Gear http://datazap.me/u/phantobe/stg1pul...=0&data=1-5-10 2nd gear http://datazap.me/u/phantobe/stg1pul...=0&data=1-5-10 I think 3rd gear again http://datazap.me/u/phantobe/stg1kre...5?log=0&data=1 Daily Driving I was gonna get under the car this weekend to check things out...but any ideas or suggestions to troubleshoot this? Quote:
__________________
2014 Ultramarine Scion FR-S 2000 Integra LS - SOLD Last edited by Phantobe; 06-24-2015 at 08:32 PM. |
|
06-24-2015, 08:35 PM | #2 |
Senior Member
Join Date: Oct 2012
Drives: UK GT86
Location: UK
Posts: 3,040
Thanks: 185
Thanked 1,629 Times in 1,112 Posts
Mentioned: 155 Post(s)
Tagged: 1 Thread(s)
|
Change in manifold could do that, if it's not a physical issue then just add some fuel in.
What's your O2 scaling like?
__________________
.: Stealth 86 :.
Abbey Motorsport/K47 Tuned Sprintex 210 Supercharger Kodename 47 DJ: Soundcloud / Instagram / Facebook |
06-24-2015, 09:02 PM | #3 | |
Senior Member
Join Date: Aug 2013
Drives: 14 Ultramarine FR-S
Location: SOCAL
Posts: 795
Thanks: 381
Thanked 413 Times in 231 Posts
Mentioned: 14 Post(s)
Tagged: 1 Thread(s)
|
Quote:
Not really sure why the ECU isn't adding fuel. Like under WOT until about 5k LTFT is 0% while the AFR is not that close to the command AFR.
__________________
2014 Ultramarine Scion FR-S 2000 Integra LS - SOLD |
|
06-24-2015, 09:18 PM | #4 | |
Banned
Join Date: Dec 2013
Drives: FT86
Location: Australia
Posts: 7,998
Thanks: 1,035
Thanked 4,987 Times in 2,981 Posts
Mentioned: 598 Post(s)
Tagged: 2 Thread(s)
|
Quote:
|
|
06-24-2015, 11:33 PM | #5 |
Senior Member
Join Date: Aug 2013
Drives: 14 Ultramarine FR-S
Location: SOCAL
Posts: 795
Thanks: 381
Thanked 413 Times in 231 Posts
Mentioned: 14 Post(s)
Tagged: 1 Thread(s)
|
I guess I'll give it a try, is it okay to do OL scaling before CL scaling?
__________________
2014 Ultramarine Scion FR-S 2000 Integra LS - SOLD |
06-25-2015, 03:02 AM | #6 |
Banned
Join Date: Dec 2013
Drives: FT86
Location: Australia
Posts: 7,998
Thanks: 1,035
Thanked 4,987 Times in 2,981 Posts
Mentioned: 598 Post(s)
Tagged: 2 Thread(s)
|
|
06-25-2015, 10:49 AM | #7 |
Senior Member
Join Date: Aug 2013
Drives: 14 Ultramarine FR-S
Location: SOCAL
Posts: 795
Thanks: 381
Thanked 413 Times in 231 Posts
Mentioned: 14 Post(s)
Tagged: 1 Thread(s)
|
Gotcha...
Is it okay to do 2nd gear pulls for data? Or is 3rd gear preferred (the guide recommends 3rd or 4th), I don't have a lot of stretches of road for 3rd lol.
__________________
2014 Ultramarine Scion FR-S 2000 Integra LS - SOLD |
06-25-2015, 11:15 AM | #8 |
Senior Member
Join Date: Jul 2012
Drives: 2013 Asphalt FR-S Manual
Location: Whitby, ON, Canada
Posts: 6,716
Thanks: 7,875
Thanked 3,351 Times in 2,134 Posts
Mentioned: 99 Post(s)
Tagged: 1 Thread(s)
|
Did you reflash after swapping manifolds? The trims could still be learning after the swap.
__________________
Light travels faster than sound, so people may appear to be bright until you hear them speak... flickr |
06-25-2015, 01:25 PM | #9 |
Senior Member
Join Date: Aug 2013
Drives: 14 Ultramarine FR-S
Location: SOCAL
Posts: 795
Thanks: 381
Thanked 413 Times in 231 Posts
Mentioned: 14 Post(s)
Tagged: 1 Thread(s)
|
Yep. Ran stg 2 uel when I had uel header in. Swapped to stock. Flashed to factory, ran for a bit. Then flashed to stg 1.
__________________
2014 Ultramarine Scion FR-S 2000 Integra LS - SOLD |
06-25-2015, 03:25 PM | #10 |
Senior Member
Join Date: Oct 2012
Drives: UK GT86
Location: UK
Posts: 3,040
Thanks: 185
Thanked 1,629 Times in 1,112 Posts
Mentioned: 155 Post(s)
Tagged: 1 Thread(s)
|
In open loop the commanded and "actual" AFR can be and usually are different. Nothing says they should match up. Either scale the WOT portion of the MAF, which will throw load and therefore ignition timing out, or just make the Open Loop fuel table richer by the same percent that the AFR is "off".
__________________
.: Stealth 86 :.
Abbey Motorsport/K47 Tuned Sprintex 210 Supercharger Kodename 47 DJ: Soundcloud / Instagram / Facebook |
06-25-2015, 03:55 PM | #11 | |
Senior Member
Join Date: Aug 2013
Drives: 14 Ultramarine FR-S
Location: SOCAL
Posts: 795
Thanks: 381
Thanked 413 Times in 231 Posts
Mentioned: 14 Post(s)
Tagged: 1 Thread(s)
|
Quote:
I'm going to do the OL MAF scaling and see if that fixes the issue. I still think I'm going to get under there and remove the skid pan and make sure everything looks good this weekend. However since I'm running lean @ WOT would it more likely be a fuel or vacuum leak? Or could it be either. Thanks for the help gents
__________________
2014 Ultramarine Scion FR-S 2000 Integra LS - SOLD |
|
06-25-2015, 10:30 PM | #12 |
Senior Member
Join Date: Aug 2013
Drives: 14 Ultramarine FR-S
Location: SOCAL
Posts: 795
Thanks: 381
Thanked 413 Times in 231 Posts
Mentioned: 14 Post(s)
Tagged: 1 Thread(s)
|
__________________
2014 Ultramarine Scion FR-S 2000 Integra LS - SOLD |
06-26-2015, 12:09 AM | #13 |
Senior Member
Join Date: Apr 2014
Drives: Toyota 86 GTS
Location: Australia
Posts: 1,129
Thanks: 453
Thanked 895 Times in 424 Posts
Mentioned: 211 Post(s)
Tagged: 0 Thread(s)
|
It looks like it's either 1. a hardware/sensor issue - in which case you should screw with the tune until it's sorted, or 2. It's a Stg1 MAF scale running on Stg2 tune - that's the only time I've seen oft run so lean.
|
06-26-2015, 02:25 AM | #14 | |
Senior Member
Join Date: Aug 2013
Drives: 14 Ultramarine FR-S
Location: SOCAL
Posts: 795
Thanks: 381
Thanked 413 Times in 231 Posts
Mentioned: 14 Post(s)
Tagged: 1 Thread(s)
|
Quote:
I'll double check the tune tomorrow but I think if I'd know very quickly if I was running a stg2 tune on a stock exhaust manifold. I'd imagine you'd get tons of knock occurrences. If you look at the op that was the only other person I saw with a similar issue.
__________________
2014 Ultramarine Scion FR-S 2000 Integra LS - SOLD |
|
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Installed Cusco Catch can wrong? Running lean | goshem | Engine, Exhaust, Transmission | 17 | 08-19-2014 03:06 PM |
Syste!m too lean bank 1 | jonbonazza | Issues | Warranty | Recalls / TSB | 55 | 07-05-2014 01:36 AM |
lean at idle only | woode | Forced Induction | 5 | 05-03-2014 04:48 PM |
running lean | EZWood | Engine, Exhaust, Transmission | 26 | 10-18-2013 12:53 PM |
Slip+CEL = Bank1 running lean? | Trashed675 | Issues | Warranty | Recalls / TSB | 11 | 03-28-2013 10:53 PM |