Welcome to the North American Subaru Impreza Owners Club Saturday August 23, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Engine Management & Tuning > Commercial ECU Reflashes

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 12-26-2006, 06:28 PM   #1
WReXd
Scooby Specialist
 
Member#: 114101
Join Date: May 2006
Chapter/Region: SCIC
Location: Buena Park, CA
Vehicle:
93 Impreza L Swap

Default PLEASE check out my datalog!

How's my car running?

Mods:
P&p&c'd stock manifolds
Txs cast upppipe
Mrt catted turboback
Intercooler y hose
Lightweight (not ud) pulley
OSECU stage 2 base map

Car is an 02 wrx, mt.

Code:
Time	RPM	MAF	IAT	Knock	MRP	FIPW	Ig Tim	WGDC	TPS	CT
0	920	13.71	25	3	0.725	6.91	12	60	93.73	91
180	1058	14.84	25	4	0.725	6.91	13	89.8	97.65	91
531	1121	15.78	25	4	0.871	6.91	16	100	99.22	91
971	1196	16.87	25	4	0.871	6.91	17	100	100	91
1352	1255	18.87	25	4	1.016	6.91	18	100	100	91
1762	1339	19.7	25	4	1.161	7.17	19	100	100	91
2173	1430	21.94	25	4	1.306	7.17	20	100	100	91
2563	1505	23.01	25	4	1.451	7.17	21	100	100	91
2934	1587	25.42	25	5	1.596	7.42	23	100	100	91
3375	1682	27.04	25	7	1.886	7.68	27	100	100	91
3765	1787	29.47	25	8	2.176	7.94	30	100	100	91
4186	1882	33.31	25	9	2.467	8.19	31	100	100	91
4596	1976	35.85	25	9	2.902	8.45	32	100	100	91
4997	2086	38.26	25	9	3.192	8.45	31	100	100	91
5387	2186	41.44	24	9	3.627	8.7	29	99.61	100	91
5788	2291	44.04	24	9	4.208	8.96	27	98.82	100	91
6259	2405	49.23	24	9	4.933	9.47	24	97.65	100	91
6679	2568	57.81	24	9	6.239	10.24	21	96.86	100	91
7060	2704	66.65	24	9	7.545	11.01	20	96.08	100	91
7511	2851	78.53	24	9	9.576	12.8	19	95.29	100	91
7901	3017	91.56	23	9	11.753	14.85	19	94.51	100	91
8272	3170	100.74	23	9	12.914	15.62	18	94.51	100	90
8712	3392	108.56	23	10	13.059	15.87	18	94.51	100	90
9093	3559	121.28	23	9	13.204	17.15	17	94.51	100	90
9513	3744	133.2	22	9	13.784	17.66	16	94.51	100	90
9904	3966	135.8	22	9	13.784	17.41	16	94.51	100	90
10285	4139	142.9	22	9	13.784	17.66	17	92.94	100	90
10695	4350	153.66	22	9	13.784	18.18	16	90.98	100	90
11086	4543	161.04	21	9	14.075	18.69	17	89.8	100	90
11486	4732	165.95	21	10	13.784	18.94	18	89.8	100	90
11867	4902	172.81	21	10	13.929	18.94	20	89.8	100	90
12277	5158	181.06	21	9	13.784	18.94	21	89.8	100	90
12708	5293	188.39	20	7	13.494	18.94	20	89.8	100	90
13139	5601	197.3	20	3	13.204	18.94	19	88.63	100	89
13539	5725	199.52	20	4	12.769	18.94	19	85.49	100	89
13920	5896	199.92	19	4	12.188	18.43	21	82.35	100	89
14320	6024	207.39	19	2	11.898	18.43	20	79.61	100	88
14711	6173	206.99	19	0	11.608	18.18	19	76.86	100	88
15071	6281	12.03	19	0	-8.706	0	12	0	0	88
15462	5576	20.69	19	0	-10.157	0	12	0	0	87
In case you don't understand my abbreviations, they are

Time
Engine Speed
Mass air Flow (g/s)
Intake Air Temperature (∞C)
Knock Correction (∞BTDC)
Manifold Relative Pressure (psi)
Fuel Injector #1 Pulse Width (ms)
Ignition Timing (∞BTDC)
Primary wastegate duty cycle (%)
Throttle Position (%)
Coolant Temp (∞C)
* Registered users of the site do not see these ads.
WReXd is offline   Reply With Quote
Old 12-26-2006, 07:34 PM   #2
lancelucas
Scooby Specialist
 
Member#: 124282
Join Date: Aug 2006
Chapter/Region: NWIC
Location: 30000 ft
Vehicle:
04 WRX Wagon PSM
13 STI Sedan SWP

Default

Quote:
Originally Posted by WReXd View Post
Code:
Time    RPM    MAF    IAT    Knock    MRP    FIPW    Ig Tim    WGDC    TPS    CT
10285    4139    142.9    22    9    13.784    17.66    17    92.94    100    90
10695    4350    153.66    22    9    13.784    18.18    16    90.98    100    90
11086    4543    161.04    21    9    14.075    18.69    17    89.8    100    90
11486    4732    165.95    21    10    13.784    18.94    18    89.8    100    90
11867    4902    172.81    21    10    13.929    18.94    20    89.8    100    90
12277    5158    181.06    21    9    13.784    18.94    21    89.8    100    90
12708    5293    188.39    20    7    13.494    18.94    20    89.8    100    90
13139    5601    197.3    20    3    13.204    18.94    19    88.63    100    89
13539    5725    199.52    20    4    12.769    18.94    19    85.49    100    89
13920    5896    199.92    19    4    12.188    18.43    21    82.35    100    89
Without seeing your timing and correction maps, it looks to me like the ECU is rapidly pulling KC in response to detonation or knock in this range.
lancelucas is offline   Reply With Quote
Old 12-26-2006, 09:50 PM   #3
blkscooby
Scooby Specialist
 
Member#: 44422
Join Date: Sep 2003
Chapter/Region: SWIC
Location: Gilbert, AZ
Vehicle:
2005 LGT
OBP

Default

PM'd you back. I will compare your log to the OSECU map you are runnin.
blkscooby is offline   Reply With Quote
Old 12-26-2006, 10:02 PM   #4
blkscooby
Scooby Specialist
 
Member#: 44422
Join Date: Sep 2003
Chapter/Region: SWIC
Location: Gilbert, AZ
Vehicle:
2005 LGT
OBP

Default

You need to log engine load in order to compare the knock correction to the map. It does appear that the car is pulling timing 5200 RPM+. My guess is that your fuel up there is not right. The injector pulse width doesn't change above 4700 RPM.
You might want to convert the pulse width to duty cycle also.
blkscooby is offline   Reply With Quote
Old 12-26-2006, 10:08 PM   #5
blkscooby
Scooby Specialist
 
Member#: 44422
Join Date: Sep 2003
Chapter/Region: SWIC
Location: Gilbert, AZ
Vehicle:
2005 LGT
OBP

Default

Oh and you are not anywhere near your boost targets. THe map calls for a max of 17.5 psi at WOT from 3000 to 4500 RPM. You were only hitting ~14 psi in this range. The strange thing is your WGDC appears to be higher than the map. You may need to adjust/ shorten your wastegaste actuator arm to apply more pressure to the wastegate. The ECU may be adding WGDC in order to get boost to target but the actuator arm may not be allowing enough force to be put on the wastegate.

Anyone else have ideas?
blkscooby is offline   Reply With Quote
Old 12-27-2006, 12:28 AM   #6
Master2192
RIP 10/12/83 to 02/10/08
Scooby Specialist
 
Member#: 83254
Join Date: Mar 2005
Chapter/Region: NWIC
Location: Roy, Washington
Vehicle:
98 2.5 RS
04 WRX

Default

^^^ Thats all I came up with. I can't tell much more without looking at his maps if he modified them. And to the noobs, you don't need to log engine load. You can convert maf g/s and rpm to engine load using the 2*g/rpm calculation that enginuity uses. It is alittle more accurate since you get a faster log rate if you don't try to log engine load. The exact calculation looks something like =2*MAF/(rpm/60)

Edit: Going with the base map, and looking at the KC of 3 at 5601 rpm, you are about 6 degrees short of where the timing should be.

Last edited by Master2192; 12-27-2006 at 12:33 AM.
Master2192 is offline   Reply With Quote
Old 12-27-2006, 01:54 AM   #7
Airboy
Scooby Specialist
 
Member#: 72829
Join Date: Oct 2004
Chapter/Region: W. Canada
Location: Calgary, Canada
Vehicle:
2006 WRX
MHI-TF06-18K

Default

Quote:
Originally Posted by blkscooby View Post
Oh and you are not anywhere near your boost targets. THe map calls for a max of 17.5 psi at WOT from 3000 to 4500 RPM. You were only hitting ~14 psi in this range. The strange thing is your WGDC appears to be higher than the map. You may need to adjust/ shorten your wastegaste actuator arm to apply more pressure to the wastegate. The ECU may be adding WGDC in order to get boost to target but the actuator arm may not be allowing enough force to be put on the wastegate.

Anyone else have ideas?
There is a compensation table for WGDC associated with altitude(atmospheric pressure) that will increase the WGDC limit as altitude goes up. I wouldn't do any wastegate adjustments until he figures out why the engine is knocking above 5200RPM.
Airboy is offline   Reply With Quote
Old 12-27-2006, 03:43 AM   #8
WReXd
Scooby Specialist
 
Member#: 114101
Join Date: May 2006
Chapter/Region: SCIC
Location: Buena Park, CA
Vehicle:
93 Impreza L Swap

Default

The boost target thing is my fault... I think. Earlier, I tightened my wastegate arm, and when I reflashed my ecu, I went to go untighten it, but had forgotten how many times I had turned it. So it's possible that it is a half turn or more too loose.

I'll admit that I'm a complete noob with this stuff, so half the things you guys are saying completely baffles me. I'll try to read up on timing, knock correction, engine load, etc. because I'm a bit confused. Any educational links?

Do you guys suggest that I reflash to stock just to be safe? I was planning on running this setup til a few mods later when I'll road tune.

One more thing: there are a few things that I've been suspecting.
1. A pre-turbo exhaust leak
2. A bpv gasket leak
Could either of these cause any of the above problems?

Last edited by WReXd; 12-27-2006 at 03:48 AM.
WReXd is offline   Reply With Quote
Old 12-27-2006, 08:07 AM   #9
blkscooby
Scooby Specialist
 
Member#: 44422
Join Date: Sep 2003
Chapter/Region: SWIC
Location: Gilbert, AZ
Vehicle:
2005 LGT
OBP

Default

Quote:
Originally Posted by WReXd View Post
The boost target thing is my fault... I think. Earlier, I tightened my wastegate arm, and when I reflashed my ecu, I went to go untighten it, but had forgotten how many times I had turned it. So it's possible that it is a half turn or more too loose.

I'll admit that I'm a complete noob with this stuff, so half the things you guys are saying completely baffles me. I'll try to read up on timing, knock correction, engine load, etc. because I'm a bit confused. Any educational links?

Do you guys suggest that I reflash to stock just to be safe? I was planning on running this setup til a few mods later when I'll road tune.
I don't think you need to reflash to stock. Just stay off WOT until you get this sorted out. I also wouldn't correct the wastegaste arm until your issue is fixed either. No need to throw boost at a lean situation- even more knock.

As fas as timing, knock correction, IAM, etc- do a search here. There is loads of useful info. Also try Enginuity.org.

Quote:
Originally Posted by WReXd View Post
One more thing: there are a few things that I've been suspecting.
1. A pre-turbo exhaust leak
2. A bpv gasket leak
Could either of these cause any of the above problems?
1. A pre-turbo leak could cause you to run lean (I think). I think your problem above 5200 is a lean/ fuel issue, so if you have a leak, fix it.

2. A BPV leak would cause you to not meet target boost by leaking boost, yes. However, I would think that this also would cause you to run rich. The MAF is readign more air than you are actually sending into the intake and adding the appropriate fuel. Check to see if you have this but I don't think this is causing your knock.
blkscooby is offline   Reply With Quote
Old 12-27-2006, 08:46 AM   #10
tachrev
Scooby Newbie
 
Member#: 115260
Join Date: May 2006
Chapter/Region: MAIC
Location: Dover, DE
Vehicle:
04 WRX
205/22E Hybrid w/ VF39

Default

Just to point out, the OP listed his pre-turbo leak as being in the exhaust, not the intake side. That would eliminate it from the list of things that would make it run lean, though it would make it hard to hit target boost.
Check all your clamps and hoses on the turbo inlet/MAF side.
Check out/replace the fuel filter and make sure the FPR is working right and has the vacuum line attached.

This is all assuming your map is calling for an appropriate amount of fuel, since I haven't heard otherwise from those who have seen the map.
tachrev is offline   Reply With Quote
Old 12-28-2006, 02:18 PM   #11
WReXd
Scooby Specialist
 
Member#: 114101
Join Date: May 2006
Chapter/Region: SCIC
Location: Buena Park, CA
Vehicle:
93 Impreza L Swap

Default

Quote:
Originally Posted by tachrev View Post
make sure the FPR is working right and has the vacuum line attached.
How do I do this? Is there anything else you guys would reccomend that I do? One step colder plugs?
WReXd is offline   Reply With Quote
Old 12-29-2006, 01:21 AM   #12
WReXd
Scooby Specialist
 
Member#: 114101
Join Date: May 2006
Chapter/Region: SCIC
Location: Buena Park, CA
Vehicle:
93 Impreza L Swap

Default

Ok, I checked the FPR, and the vacuum line was attached. However... I don't think the hose that goes from the FPR to the bottom of the intake manifold was attached. Could that have been causing the problem? Any other opinions? I did another 3rd gear pull, this time logging advance multiplier and load. Should I post that up?
WReXd is offline   Reply With Quote
Old 12-29-2006, 08:27 AM   #13
blkscooby
Scooby Specialist
 
Member#: 44422
Join Date: Sep 2003
Chapter/Region: SWIC
Location: Gilbert, AZ
Vehicle:
2005 LGT
OBP

Default

Yeah, post your new log and lets have a look see... Sounds like you might have found something. Vacuum (boost) leaks are never good.
blkscooby is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Please check out my setup InChanWeTrust Brakes, Steering & Suspension 3 03-18-2005 12:24 AM
Please Check Out My Message Boards!!! Broncostar Off-Topic 58 03-16-2005 05:40 PM
Please check out my Ebay stuff---Not car related merchandise wrx2.0 555 Private 'For Sale' Classifieds 10 12-01-2003 05:38 PM
Chicagolanders....if you're looking for wheels, please check out my FS kenchan Mid West Subaru Owners Club Forum -- MWSOC 3 01-06-2003 12:59 AM


All times are GMT -4. The time now is 03:11 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.