How to subtract Timing with Utec?
How to subtract Timing with Utec?
I'm having some knock around 4700RPM at 40 load, I have done lots of logging but in some cases I do get some knock at that area. MY AF is at 11.22 so I'm not leaning out, can someone tell me were/how much to subtract?
This is a 2nd to 3rd gear pull.
This is a 2nd to 3rd gear pull.
Code:
Load Knock Mod RPM MAP TPS Site Count Ign#1 Inj#1 Ign A/F psia % deg duty deg 6016.00 5.70 92.00 60.00 0.00 16.90 83.10 16.50 11.58 6116.00 6.00 91.00 60.00 0.00 16.80 84.30 16.60 11.69 6195.00 6.20 94.00 60.00 0.00 17.90 87.60 16.40 11.63 6337.00 6.40 95.00 60.00 0.00 17.80 89.30 16.80 11.63 6385.00 6.00 95.00 60.00 0.00 17.80 90.70 17.00 11.29 6510.00 6.00 95.00 60.00 0.00 17.90 91.60 17.20 11.29 6535.00 6.00 0.00 60.00 0.00 22.90 80.60 19.10 11.29 6195.00 -6.70 1.00 0.00 0.00 33.80 11.70 ECU. 12.49 6027.00 -10.40 1.00 0.00 0.00 34.00 6.50 ECU. 11.91 5767.00 -11.60 0.00 0.00 0.00 32.00 6.40 ECU. 11.91 5385.00 -9.50 63.00 0.00 0.00 19.10 43.70 ECU. 32.91 4623.00 0.30 98.00 10.00 0.00 12.20 35.50 18.50 34.79 4741.00 1.40 98.00 20.00 0.00 12.00 40.40 17.60 12.10 4649.00 2.40 97.00 20.00 2.00 14.00 46.30 17.30 12.20 4741.00 3.40 97.00 40.00 10.00 12.20 55.80 6.00 11.22 4768.00 4.50 98.00 50.00 0.00 6.00 63.60 5.10 11.42 4810.00 5.70 97.00 60.00 0.00 13.00 65.30 9.10 11.42 4975.00 6.60 96.00 70.00 0.00 6.90 70.60 12.60 11.42 4916.00 7.50 96.00 70.00 0.00 10.00 75.60 12.20 11.42 5027.00 7.90 97.00 80.00 0.00 12.90 76.70 12.50 11.42 5096.00 8.10 97.00 80.00 0.00 12.90 79.50 12.60 11.42 5081.00 8.10 97.00 80.00 0.00 12.00 78.30 12.60 11.77
it looks like you need to take out some timing at ~4600 @ 20% load, it goes from 12 degrees to 14 degrees back to 12, then it knocks, try taking out 2 degrees there and see what happens
Originally Posted by rcdash
No it's worse than that - his modified timing goes up to 18.5. The 14 is the stock ECU timing I believe. Trim that down.
my bad, I dont ever use the UTEC to log, i use the MPS software
why dont you post a screenshot of your timing map
Originally Posted by jining
Your A/F is at 34:1 at 4600 :|
The Ignition degree goes from 17->6->5->9->12 isnt that a bit odd?
The Ignition degree goes from 17->6->5->9->12 isnt that a bit odd?
that looks like where he is shifting, mine goes crazy lean when i am decellerating too
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Originally Posted by jining
Your A/F is at 34:1 at 4600 :|
The Ignition degree goes from 17->6->5->9->12 isnt that a bit odd?
The Ignition degree goes from 17->6->5->9->12 isnt that a bit odd?
Yes, I was shifting on that and you can see my TPS going from 0-60% so the utec hasn't fully taken over yet. my timing went from 17-6-5 because of UTEC seeing some nasty knock and it pulled a lot of timing. Since I was knocking at that range (If ever I got any knock), I did pull some timing on the 4750 rpm at 30-40 load column of about 1 deg and I also pulled 1 deg on the 4500rpm at 40 load column. I don't really know whick cell to subtract so I started there and so far no knock yet even with the AC on.
Last edited by athenG; Sep 6, 2007 at 06:07 AM.
here's my old map and and I subtracted 1 deg on the bold area.
Code:
4000 [-100] [20] [20] [20] [19] [20.5] [19] [18] [16] [14.5] [14] 4250 [-100] [20] [18] [20] [18.5] [17] [17] [16] [15] [13] [13] 4500 [-100] [19] [17] [18] [16] [15.5] [14.5] [13.5] [12.5] [12.5] [12] 4750 [-100] [17] [18] [18] [16] [15.5] [13.5] [12.5] [11.5] [12] [12] 5000 [-100] [19] [19] [18] [18] [15] [14] [13] [13] [11.5] [11.5] 5250 [-100] [19.4] [19.4] [18] [17] [16.5] [14.5] [13.5] [13.5] [12.5] [12.9] 5500 [-100] [19.4] [19.4] [16.5] [16] [17] [14] [14] [15] [14] [14] 5750 [-100] [21.5] [21.5] [17.5] [17] [16.5] [15] [15] [15] [15.5] [15.5]
Last edited by athenG; Sep 6, 2007 at 06:14 AM.
I would try to pull out 2 degrees in the problem area and see if that helps. It is very warm out right now.
Also are there any big changes in your fuel map in this area? Your A/F might be ok but a big change could still shock the system.
Also are there any big changes in your fuel map in this area? Your A/F might be ok but a big change could still shock the system.
Originally Posted by TIMMAHH
I would try to pull out 2 degrees in the problem area and see if that helps. It is very warm out right now.
Also are there any big changes in your fuel map in this area? Your A/F might be ok but a big change could still shock the system.
Also are there any big changes in your fuel map in this area? Your A/F might be ok but a big change could still shock the system.
That is my problem, when I see knock on a specific load and RPM do I just subtract on that cell or do I need to also make changes on the surrounding cell... I was thinking of just adding some fuel first but didn't know how much value to put in.
Here's a part of my Fuel Map.
Code:
4000 [-5.4] [94.8] [107.5] [112.5] [129.8] [138.9] [148] [163.6] [178.9] [180.6] [187.6] 4250 [-5.4] [92.6] [110.3] [116.3] [137.5] [150.2] [150] [165.8] [180.9] [184] [187.9] 4500 [-5.4] [93.3] [111] [126.2] [151.1] [153.6] [159.9] [173.9] [186.3] [187.6] [194.6] 4750 [-5.4] [93.3] [111] [126.2] [155.6] [159.3] [163.9] [174.9] [189.6] [193.1] [200.1] 5000 [-5.5] [115] [122] [125.5] [156.4] [163.2] [162.8] [178.7] [185] [196.4] [193.8] 5250 [-5.5] [115] [122] [125.5] [155.5] [163] [165.1] [184.5] [187.4] [198.8] [196.2] 5500 [-5.5] [115] [122] [125.5] [156.6] [163.8] [167.4] [184.4] [191.5] [205.1] [202.5] 5750 [-5.5] [115] [122] [125.5] [156.6] [163.8] [165.1] [182.1] [189.6] [202.5] [202.5]
Originally Posted by athenG
That is my problem, when I see knock on a specific load and RPM do I just subtract on that cell or do I need to also make changes on the surrounding cell...
Code:
4000 [-100] [20] [20] [20] [19] [20.5] [19] [18] [16] [14.5] [14] 4250 [-100] [20] [17.5] [20] [18.5] [17] [17] [16] [15] [13] [13] 4500 [-100] [19] [17] [16] [15.5] [15.5] [14.5] [13.5] [12.5] [12.5] [12] 4750 [-100] [17] [18] [17] [15] [15.5] [13.5] [12.5] [11.5] [12] [12] 5000 [-100] [19] [19] [17.5] [16.5] [15] [14] [13] [13] [11.5] [11.5] 5250 [-100] [19.4] [19.4] [18] [17] [16.5] [14.5] [13.5] [13.5] [12.5] [12.9] 5500 [-100] [19.4] [19.4] [16.5] [16] [17] [14] [14] [15] [14] [14] 5750 [-100] [21.5] [21.5] [17.5] [17] [16.5] [15] [15] [15] [15.5] [15.5]
Originally Posted by Kenk2
See when your driving and are at WOT, your going through your timing map in a linear way.. There is a post made by Julian explaining this but I will try and show you via the map you posted above.
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