Captured a UTEC log - help me understand ...
Thread Starter
Evolved Member
Joined: Sep 2003
Posts: 1,078
Likes: 61
From: Ulster County, NY
Captured a UTEC log - help me understand ...
I have the UTEC program 1 set up to basically be a pseudo passthru mode.
The timing map is set to all ECU, and the fuel map is all zeros, so this allows the ECUs current flash to control them.
I did a 3rd gear pull, and was surprised to see the high knock count at 5K. I didn't "feel" anything happen.
Here is the log:
What does the high knock count mean (other than the obvious )???
How does the count observed by the UTEC correlate to the knock count the ECU saw ???
Can you correlate the two ???
The timing map is set to all ECU, and the fuel map is all zeros, so this allows the ECUs current flash to control them.
I did a 3rd gear pull, and was surprised to see the high knock count at 5K. I didn't "feel" anything happen.
Here is the log:
Code:
EXT Load Knock Mod Mod Mod
RPM MAP MAF TPS Site Count Ign#1 Inj#1 Ign Fuel Boost MAF
psia Hz % deg duty deg % (OL) Hz
4065 -9.0 146 15 00 00 +41.2 7.4 ECU. +0.0 ECU. 150
4070 -9.0 164 17 00 00 +41.0 7.6 ECU. +0.0 ECU. 188
4095 -8.8 198 19 00 00 +38.9 8.7 ECU. +0.0 ECU. 214
4100 -8.3 210 20 00 00 +37.9 9.2 ECU. +0.0 ECU. 210
4084 -7.8 211 20 00 00 +37.9 11.8 ECU. +0.0 ECU. 221
4095 -7.3 230 21 00 00 +36.9 10.2 ECU. +0.0 ECU. 236
4145 -6.9 293 24 00 00 +32.9 11.8 ECU. +0.0 ECU. 307
4166 -5.9 434 32 00 00 +29.8 16.8 ECU. +0.0 ECU. 437
4214 -4.0 596 57 10 00 +27.0 18.9 ECU. +0.0 ECU. 592
4295 -1.4 720 100 20 00 +20.9 26.1 ECU. +0.0 75.00 636
4334 +1.9 899 100 30 00 +14.9 31.3 ECU. +0.0 75.00 1016
4474 +5.6 1098 100 50 00 +10.8 36.8 ECU. +0.0 75.00 1131
4604 +9.4 1315 100 70 00 +8.0 45.7 ECU. +0.0 75.00 1445
4741 +13.9 1483 100 90 00 +8.0 57.1 ECU. +0.0 75.00 1633
4901 +18.6 1547 100 100 00 +8.0 59.8 ECU. +0.0 75.00 1666
5081 +22.9 1754 100 100 17 +6.1 60.4 ECU. +0.0 75.00 1773
5232 +25.9 1805 100 100 00 +6.2 63.0 ECU. +0.0 75.00 1773
5402 +27.6 1908 100 100 00 +5.9 64.6 ECU. +0.0 75.00 1865
5583 +28.3 1858 100 100 00 +6.2 63.6 ECU. +0.0 75.00 2016
5767 +28.3 1923 100 100 00 +7.3 66.6 ECU. +0.0 75.00 1798
5899 +28.1 1915 100 100 00 +8.3 67.7 ECU. +0.0 75.00 1851
6071 +27.6 1960 100 100 00 +9.5 67.4 ECU. +0.0 75.00 1953
6207 +27.4 1984 100 100 00 +9.5 68.0 ECU. +0.0 75.00 1984
6349 +27.1 2008 100 100 00 +11.0 69.2 ECU. +0.0 75.00 1908
6535 +26.6 2016 100 100 00 +11.0 71.7 ECU. +0.0 75.00 2136
6653 +26.2 2016 100 100 00 +12.2 70.6 ECU. +0.0 75.00 2083
6775 +25.9 2040 100 100 00 +13.2 72.3 ECU. +0.0 75.00 2066
6944 +25.5 2049 100 100 00 +14.3 69.8 ECU. +0.0 75.00 2100
7092 +25.2 2040 100 100 04 +14.4 69.2 ECU. +0.0 75.00 1984
7168 +25.0 2066 100 100 02 +12.5 70.2 ECU. +0.0 75.00 1953
7326 +24.8 2074 100 100 00 +13.5 70.8 ECU. +0.0 75.00 2032
7440 +24.5 2092 100 100 00 +14.0 68.0 ECU. +0.0 75.00 2118
7575 +24.3 2074 100 100 00 +13.8 67.1 ECU. +0.0 75.00 2032
7716 +24.0 2074 100 100 00 +13.7 68.6 ECU. +0.0 75.00 2016
7770 +24.0 2100 90 100 00 +13.4 71.2 ECU. +0.0 75.00 144
7627 +19.8 167 10 00 00 +38.8 10.0 ECU. +0.0 ECU. 94
7122 +12.0 107 4 00 00 +38.5 11.5 ECU. +0.0 ECU. 176
6587 +3.0 91 0 00 00 +38.5 8.9 ECU. +0.0 ECU. 168
5546 -6.2 75 0 00 00 +38.4 7.1 ECU. +0.0 ECU. 64
5592 -11.4 58 0 00 00 +28.3 7.1 ECU. +0.0 ECU. 47
5518 -12.5 77 0 00 00 +28.4 7.1 ECU. +0.0 ECU. 303
5527 -12.5 59 0 00 00 +28.4 7.1 ECU. +0.0 ECU. 61
5500 -12.5 69 0 00 00 +28.4 7.1 ECU. +0.0 ECU. 66
5473 -12.5 68 0 00 00 +28.5 7.1 ECU. +0.0 ECU. 71
5065 -12.3 67 0 00 00 +28.3 7.1 ECU. +0.0 ECU. 68
4668 -12.3 65 0 00 00 +25.0 7.1 ECU. +0.0 ECU. 61
4312 -12.1 68 0 00 00 +23.9 7.1 ECU. +0.0 ECU. 61
3996 -11.8 66 0 00 00 +21.0 7.1 ECU. +0.0 ECU. 65
3699 -11.6 64 0 00 00 +20.9 7.1 ECU. +0.0 ECU. 56
3762 -11.6 63 0 00 00 +20.9 7.1 ECU. +0.0 ECU. 61
3770 -11.4 61 0 00 00 +20.9 7.1 ECU. +0.0 ECU. 62
How does the count observed by the UTEC correlate to the knock count the ECU saw ???
Can you correlate the two ???
Thread Starter
Evolved Member
Joined: Sep 2003
Posts: 1,078
Likes: 61
From: Ulster County, NY
I am also having troubles with my SMC kit. If it's taking longer than usual to come on full, I suppose I could end
up with a lean spot at the start of the pull, and that's kinda what it looks like.
I'm curious...why do you say I am spending too much too in the 100 load cell??
The car is WOT, pulling like a freight train to redline. It seems that's the cell to be in until the pull is over.
Any comments about how to interpret the UTEC knock count vs. the ECU knock count ???
What EvoTech means I think is that it looks like you have max maf setting set to 1700. Basically, you are sitting in the last column of the load matrix even though your actual maf continues to rise. Basically, you don't have another load cell to move into.
Hope I explained that clear enough. Basically, you have to set up the load matrix up so that you rarely hit 100% load so that when you do the ECU knows what to do.
Of course in this instance it really doesn't matter since the UTEC isn't doing anything except logging data. What is controlling boost?
There are tons of posts regarding this in the UTEC forum. What are you using as a load reference, boost or maf?
Just out of curiosity what turbo is that?
Hope I explained that clear enough. Basically, you have to set up the load matrix up so that you rarely hit 100% load so that when you do the ECU knows what to do.
Of course in this instance it really doesn't matter since the UTEC isn't doing anything except logging data. What is controlling boost?
There are tons of posts regarding this in the UTEC forum. What are you using as a load reference, boost or maf?
Just out of curiosity what turbo is that?
Last edited by DCsleeper; Jun 18, 2007 at 07:49 PM.
And the knock count...depends on if the settings were messed with. Typically, a knock count of 3 on the UTEC is the point at which it would pull timing if you were using the UTEC to control things.
Thread Starter
Evolved Member
Joined: Sep 2003
Posts: 1,078
Likes: 61
From: Ulster County, NY
What EvoTech means I think is that it looks like you have max maf setting set to 1700. Basically, you are sitting in the last column of the load matrix even though your actual maf continues to rise. Basically, you don't have another load cell to move into.
Hope I explained that clear enough. Basically, you have to set up the load matrix up so that you rarely hit 100% load so that when you do the ECU knows what to do.
Of course in this instance it really doesn't matter since the UTEC isn't doing anything except logging data. What is controlling boost?
There are tons of posts regarding this in the UTEC forum. What are you using as a load reference, boost or maf?
Just out of curiosity what turbo is that?
Hope I explained that clear enough. Basically, you have to set up the load matrix up so that you rarely hit 100% load so that when you do the ECU knows what to do.
Of course in this instance it really doesn't matter since the UTEC isn't doing anything except logging data. What is controlling boost?
There are tons of posts regarding this in the UTEC forum. What are you using as a load reference, boost or maf?
Just out of curiosity what turbo is that?
If I change the MAF max to 2100, the load point value will be more accurate.
The load point can be ignored at this point, as the UTEC really isn't controlling anything.
I am just logging with it for now. Wish I had a Tuner Pro so I can tie in the wideband.
But a tactrix cable is cheaper, so I will probably go that route.
I have a HKS EVC V to control boost. Load reference is MAF I believe. The turbo is an FP 20GLT.
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On your SMC kit, do you have the trunk mount or under the hood? If using 100% methenol, I have seen the meth begin to boil in the rez under the hood. Changing to 50/50 solved the problem, and a trunk mount rez also solves the problem. This is only a guess as to why you would knock so much and then be "knock free" for most of the rest of the pull. A WB you would see a lean spot from when the meth pump vapor locked if the meth was at boiling point.
Oh, also be advised that you will have no knock correction from the utec when running map 0, your stock ecu will handle the knock and I have found that the stock ecu is much more "smooth" at doing so. I have gotten up to a 17 count with evoscan and "felt" nothing, yet can feel the timing retard on utec correction with as small 3 count. Feels like a small hesitation in the power band.
L8
How that helps some
L8
How that helps some
Thread Starter
Evolved Member
Joined: Sep 2003
Posts: 1,078
Likes: 61
From: Ulster County, NY
Thanks BoostN. I have the underhood kit. I believe I am having problems with the pump, as I am only seeing
about 60psi on the guage when hitting the test button. I use denatured alchohol.
I want to replace the pump, but not with another flojet.
Yeah - I think the ECU musta handled the knock OK, as it only registered for one log cycle.
I tend to think with my pump problems, what I saw is what Evotech said, a lean condition because the pump was lagging.
Plus I was running real high boost >28psi. I am going to turn the max on setting down, so that the kit hits
full spray sooner to help overcome the pump lag.
about 60psi on the guage when hitting the test button. I use denatured alchohol.
I want to replace the pump, but not with another flojet.
Yeah - I think the ECU musta handled the knock OK, as it only registered for one log cycle.
I tend to think with my pump problems, what I saw is what Evotech said, a lean condition because the pump was lagging.
Plus I was running real high boost >28psi. I am going to turn the max on setting down, so that the kit hits
full spray sooner to help overcome the pump lag.
Thread Starter
Evolved Member
Joined: Sep 2003
Posts: 1,078
Likes: 61
From: Ulster County, NY
I have seen threads where people were saying they were maxing out 660s.
This shows a lot of room still.
Thread Starter
Evolved Member
Joined: Sep 2003
Posts: 1,078
Likes: 61
From: Ulster County, NY
Here is a log from a quick pull today, with some knock starting up high:
I understand the knock at the higher rpms. When the evo was last tuned, the boost would start high, but fade
to 21-22 psi at the end. The current tune works great for the condition the car was in.
Now, after fixing a ton of leaks, the boost is holding 4-5psi higher at the top, as seen in the log.
Now ... this is where the UTEC will come in handy. I can go back and get my flash tune tweaked ... OR ...
I can use the fuel table to add some go juice back in on top, and see if that gets rid of the knock.
I'm anxious to start fiddling ...
BTW - which is better to use as the load reference, MAF or MAP ????
I currently have the UTEC using MAP, with the min/max set to 0/26psi ( I should probably up it to 0/30).
FYI - it was set to 0/20, which explains why the first log is in 100% load point for so long.
Code:
EXT Load Knock Mod Mod Mod
RPM MAP MAF TPS Site Count Ign#1 Inj#1 Ign Fuel Boost MAF
psia Hz % deg duty deg % (OL) Hz
3264 -4.0 240 21 00 00 +35.6 10.4 ECU. +0.0 ECU. 239
3303 -3.8 288 24 00 00 +32.7 10.2 ECU. +0.0 ECU. 299
3340 -3.1 454 44 10 00 +27.7 17.6 ECU. +0.0 75.00 453
3397 -1.2 506 100 10 00 +20.7 17.1 ECU. +0.0 75.00 694
3454 +0.7 556 100 20 00 +18.5 20.7 ECU. +0.0 75.00 838
3580 +3.3 715 100 20 00 +14.7 24.2 ECU. +0.0 75.00 620
3658 +5.4 793 100 30 00 +11.5 27.8 ECU. +0.0 75.00 615
3796 +7.5 904 100 40 00 +9.4 31.2 ECU. +0.0 75.00 716
3894 +10.1 1012 100 50 00 +8.6 36.9 ECU. +0.0 75.00 1213
4050 +13.0 1149 100 60 00 +7.8 39.4 ECU. +0.0 75.00 1077
4161 +16.0 1312 100 70 00 +7.8 47.3 ECU. +0.0 75.00 1366
4368 +19.1 1529 100 80 00 +7.9 52.4 ECU. +0.0 75.00 1412
4510 +22.4 1628 100 90 00 +7.8 55.0 ECU. +0.0 75.00 1121
4721 +25.2 1552 100 100 00 +7.9 58.2 ECU. +0.0 75.00 1420
4866 +27.1 1712 100 100 00 +8.0 56.5 ECU. +0.0 75.00 1381
5042 +28.1 1712 100 100 00 +8.1 57.8 ECU. +0.0 75.00 1677
5241 +28.3 1818 100 100 00 +7.7 64.8 ECU. +0.0 75.00 1736
5411 +28.3 1851 100 100 00 +8.3 62.9 ECU. +0.0 75.00 1908
5611 +28.3 1930 100 100 00 +8.2 65.3 ECU. +0.0 75.00 1724
5737 +28.1 1893 100 100 00 +9.1 64.4 ECU. +0.0 75.00 1838
5920 +27.8 1915 100 100 00 +11.2 65.3 ECU. +0.0 75.00 2000
6071 +27.4 1960 100 100 00 +11.3 67.0 ECU. +0.0 75.00 1984
6218 +27.1 2000 100 100 00 +11.4 69.5 ECU. +0.0 75.00 1953
6373 +26.9 2008 100 100 00 +11.9 68.8 ECU. +0.0 75.00 2016
6497 +26.6 2049 100 100 00 +11.9 71.7 ECU. +0.0 75.00 2016
6640 +26.4 2032 100 100 04 +13.3 69.0 ECU. +0.0 75.00 2032
6816 +25.9 2040 100 90 15 +12.1 68.7 ECU. +0.0 75.00 1968
6720 +23.1 465 10 00 00 +38.5 9.0 ECU. +0.0 ECU. 75
6600 +15.3 68 5 00 00 +38.5 10.2 ECU. +0.0 ECU. 77
6653 +5.9 104 0 00 00 +38.5 8.2 ECU. +0.0 ECU. 134
6613 -3.6 105 0 00 00 +38.7 8.7 ECU. +0.0 ECU. 46
6600 -10.6 71 0 00 00 +28.6 9.0 ECU. +0.0 ECU. 92
6253 -12.5 58 0 00 00 +28.6 9.0 ECU. +0.0 ECU. 43
5797 -13.0 61 0 00 00 +28.5 9.0 ECU. +0.0 ECU. 53
5341 -13.0 68 0 00 00 +28.3 9.0 ECU. +0.0 ECU. 81
4859 -12.8 64 0 00 00 +27.2 9.0 ECU. +0.0 ECU. 66
to 21-22 psi at the end. The current tune works great for the condition the car was in.
Now, after fixing a ton of leaks, the boost is holding 4-5psi higher at the top, as seen in the log.
Now ... this is where the UTEC will come in handy. I can go back and get my flash tune tweaked ... OR ...
I can use the fuel table to add some go juice back in on top, and see if that gets rid of the knock.
I'm anxious to start fiddling ...
BTW - which is better to use as the load reference, MAF or MAP ????
I currently have the UTEC using MAP, with the min/max set to 0/26psi ( I should probably up it to 0/30).
FYI - it was set to 0/20, which explains why the first log is in 100% load point for so long.
Last edited by mikesevo8; Jun 19, 2007 at 07:02 PM.