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Old 08-16-2008, 09:31 PM   #1
cjx17
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Default First datalog (vf34) how does it look?

Vf34 4eat wrx.. 1-2 gear run. (i am new at this lol) I need help making sense of this.. My car doesn't feel as strong as before, and i dont know if it is just in my head or not.

Time
Engine Speed
Manifold Absolute Pressure (PSI)
Ignition Timing
Atmospheric Pressure (PSI)
Knock Correction
Manifold Relative Pressure (PSI)
Primary Wastegate Duty Cycle (%)
Code:
0	2684	14.510	29	14.365	0	0.290	28.24	1
125	2730	14.655	29	14.365	0	0.290	25.49	1
250	2787	14.655	30	14.365	0	0.290	19.22	1
375	2870	14.945	30	14.365	1	0.580	20.78	1
500	3028	16.976	25	14.365	2	2.612	26.67	1
625	3156	17.412	23	14.365	2	3.047	32.55	1
750	3275	17.992	21	14.365	3	3.627	38.82	1
875	3440	18.718	20	14.365	4	4.353	44.71	1
1000	3573	19.733	19	14.365	5	5.369	50.59	1
1125	3735	21.039	18	14.365	5	6.675	56.86	1
1250	3813	21.765	18	14.365	7	8.416	62.75	1
1375	4021	23.796	18	14.365	8	9.431	63.14	1
1500	4230	25.973	17	14.365	8	11.608	63.14	1
1625	4496	28.584	16	14.365	8	14.220	63.14	1
1750	4798	31.196	15	14.365	8	16.831	63.14	1
1875	4957	32.212	15	14.365	8	18.282	64.71	1
2000	5308	32.792	16	14.365	8	18.427	65.49	1
2125	5431	32.937	15	14.365	8	18.427	66.27	1
2250	5635	33.082	16	14.365	8	18.427	68.24	1
2375	6029	32.937	16	14.365	8	18.427	69.02	1
2500	6308	32.647	19	14.365	8	18.282	70.59	1
2625	6527	32.212	20	14.365	8	17.847	72.16	1
2750	6527	32.212	20	14.365	8	17.847	72.16	1
2875	6708	31.922	20	14.365	8	17.557	72.94	1
3000	6868	32.067	21	14.365	8	17.702	73.73	1
3125	6010	32.357	17	14.365	8	17.992	69.80	1
3250	4470	35.984	13	14.365	8	18.427	60.78	1
3375	4848	35.259	14	14.365	8	18.427	60.00	1
3500	4918	34.098	15	14.365	8	18.427	60.78	1
3625	4921	33.518	15	14.365	8	18.427	61.18	1
3750	4980	32.792	16	14.365	8	18.427	63.14	1
3875	5092	32.937	15	14.365	8	18.427	64.31	1
4000	5154	33.227	15	14.365	8	18.427	64.71	1
4125	5223	33.663	15	14.365	8	18.427	65.10	1
4250	5327	33.808	15	14.365	8	18.427	65.49	1
4375	5443	34.098	15	14.365	8	18.427	66.27	1
4500	5450	34.243	15	14.365	8	18.427	66.27	1
4625	5506	34.243	15	14.365	8	18.427	66.27	1
4750	5652	34.388	15	14.365	8	18.427	66.27	1
4875	5690	34.388	15	14.365	8	18.427	66.27	1
5000	5734	34.388	16	14.365	8	18.427	66.27	1
5125	5832	34.388	16	14.365	8	18.427	66.27	1
5250	5919	34.243	16	14.365	8	18.427	66.67	1
5375	6024	34.098	16	14.365	8	18.427	67.06	1
5500	6038	34.098	16	14.365	8	18.427	67.45	1
5625	6142	33.808	17	14.365	8	18.427	67.84	1
5750	6173	33.663	17	14.365	8	18.427	68.24	1
5875	6245	33.518	19	14.365	8	18.427	69.02	1
6000	6340	33.518	19	14.365	8	18.427	69.41	1
6125	6356	33.518	19	14.365	8	18.427	70.20	1
6250	6482	33.227	19	14.365	8	18.427	71.37	1
6375	6488	33.227	20	14.365	8	18.427	72.16	1
6500	6482	33.227	20	14.365	8	18.427	72.16	1
6500	6482	33.227	20	14.365	8	18.427	72.16	1
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Old 08-16-2008, 09:49 PM   #2
SlverEJ20
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PSM

Default

I honestly dont really know that much about the logs I'm new to it my self but I think a log with A/f ratios would be helpfull
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Old 08-16-2008, 09:58 PM   #3
cjx17
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Default

i dont have a wideband.
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Old 08-16-2008, 10:54 PM   #4
MasterKwan
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Default

You need to log FLKC,Feedback Knock Correction, engine load. I like to log throttle angle too.

I wouldn't bother with atmospheric pressure and Manifold Absolute Pressure (PSI). It just slows down the logging.

You're going to want to get the "Learning View Tool" from RomRaider's site. It'll tell you whether your MAF is correct and how much fine learning knock correction the ECU is collecting. I'm pretty sure my 03 won't take that much timing at 4100 RPM but, every car is different.
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Old 08-17-2008, 10:23 AM   #5
crazymikie
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is this on 93 octane gas?

looks ok- you aren't pulling any timing or anything like that.
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Old 08-17-2008, 10:58 AM   #6
cjx17
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yep 93 octane.. i am hoping the "power loss" is just in my head and i just got used to my power. I think this is the longest i have gone without any major upgrades lol. I just want to make sure
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Old 08-17-2008, 06:39 PM   #7
cjx17
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Is there a way for ecu explorer to read more than 18 psi boost?
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Old 08-17-2008, 09:43 PM   #8
MasterKwan
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I'd use RomRaider to log. It's far more actively developed than EcuExplorer.

http://www.romraider.com/Documentation/RomRaiderFAQ
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Old 08-17-2008, 10:03 PM   #9
shuttlegoosecock
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ur gonna need to log afrs for a great tune.
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Old 08-17-2008, 10:43 PM   #10
BigWater
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Boost is stable

No detonation detected

Give us more details, mods, tuned ?, EGT etc...
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Old 08-18-2008, 03:18 AM   #11
SlverEJ20
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I'm pretty sure when I logged, I could atleast get afr that the ecu was reading. they werent specific but i could tell if i was lean or not
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Old 08-18-2008, 10:42 AM   #12
MasterKwan
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The stock 02 sensor tops out at 11.25:1 AFR which means that's as rich as you can read. The factory tune targets something line 9.2:1 in high load cells.
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