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Old 10-06-2007, 02:25 PM   #1
alphagoose
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Default help

i just put a tbe and uppipe on my 04 wrx. ive been trying to learn how to tune using enginuity, but have not really learned anything about how it works and how i shud go about editing my stock rom. i reaaly need help to correct my timing, today my car was blowing out a ton of smoke. and
its afr is at high 14's. im at about 100 miles since the exhaust install, and dont wanna push it any further b4 i ruin something. please help me to tune
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Old 10-06-2007, 11:20 PM   #2
WeldingHank
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get a stage 2 base map before you go any farther. then tune from there. see Osecuroms.org
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Old 10-07-2007, 04:06 AM   #3
Broxma
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First thing would be to read and save an unmolested copy of the stock Rom somewhere. You can usually get another stock Rom from the OSEcu forums, but better safe than sorry if you ever want to go back to the stock one.

Second thing would be forgetting the idea of modding your stock rom yourself the first time. Honestly, your cluelessness will do more damage than good. Your better off getting an appropriately staged map from OSEcu. When I got mine, I didn't just DL and flash it. I looked at all the values and tables that had changed from the stock to the modded Rom. Tried to find out, why they changed, what the effect would be and the relationships between them.

The enginuity forums are really the place to learn about the specifics of the stock roms.

http://www.xpttuning.com/osecuroms/viewtopic.php?t=71 is the link to a MY04 Stage 2 91 Octane map. I would start with this as a base. Check the revision number as its usually ok to update revisions or stay the same but not jump back.

/Brox
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Old 10-07-2007, 02:27 PM   #4
alphagoose
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thankyou. ye ai alreday saved my stock rom. and from that point on i was lost. so do you sugest buying a map from xpttuning or osecuroms.com?
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Old 10-07-2007, 02:27 PM   #5
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sorry i didnt realize they were the same, but do i want the one with or without the bcs
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Old 10-07-2007, 06:56 PM   #6
alphagoose
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pplease, and where can i find the gm bcs?

Last edited by alphagoose; 10-07-2007 at 07:21 PM.
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Old 10-07-2007, 07:22 PM   #7
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Quote:
Originally Posted by alphagoose View Post
pplease, and where can i find the gm bcs?
A GM dealer.
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Old 10-08-2007, 09:01 AM   #8
PrecisionPB
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Or ebay. And make sure to get the wired pigtail, unless you are a big fan of wire hack n' slash.
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Old 10-08-2007, 01:09 PM   #9
alphagoose
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what deos that mean
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Old 10-09-2007, 05:43 PM   #10
alphagoose
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i cant find this bcs online anywhere. and this guy i know that works with gm said he'd get me one but needs to know the part number. anyone know it? also, has anyone used the maps from xptuning? ive heard good and bad from them? im really in need of more opinions.
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Old 10-09-2007, 06:28 PM   #11
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check the sticky in the EM main forum. all the part #'s there.
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Old 10-09-2007, 06:55 PM   #12
Broxma
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I'm a little hesitant to reply to this again but oh well.
Curious as to why you want the GM solenoid? The stocker is good for 18psi in most cases and all the free XPT maps are tuned to use the stock solenoid. None of the stage 2 maps go above 17 PSI so it's not a kink in the armor so to speak.

My opinion of the free XPT maps...

Stage 1 map is a modified stock map with too high a boost setting. After flashing it twice, both cars dropped IAM's due to knock. It is easily adjusted to be a usable map as I have found it. Left alone, it seemed to work better on a stage 2 set up car than a stock WRX.

Stage 2 map is a bit to conservative but I think I know why. The stage 2 map is made for people to have a beginning map to self tune with I think. The boost setting is low, fuel map is a slightly modded stock one, same with timing. It works though and won't drop IAM's or pull timing even under Texas Heat midday conditions.

The free XPT maps across years are the same map, just copied to a different ECU ID. They work, but in their freeness, they are also very minimally tuned. If your going the XPT route, the 52$ maps seem to be the way to go.

My opinion on your self tune idea....

I don't have a job thanks to my wonderful wife, and I have been "Self Tuning" a stage 2 map for my car every day for 13 days, learning as much as I can, googling, reading, re-reading, more searching, road test, tune, reflash, road test, tune, etc. I've been doing this for about 6-10 hours a day. My conclusion? I still know nothing. I wouldn't trust my skills with any car but my own due to utter lack of confidence and knowledge. I do have a map that I made. It does work, and works better than the Free XPT stage 2 map AFAICT, not knocking that map. It's not hard, but it's not easy. Anyone can make a map that will run. Making it run better is the goal though. If you don't have the time, or the real desire to basically school yourself for several weeks, get the free XPT or the 52$ one, and flash and forget.

Whatever you do, I'll be glad to help.

/Brox
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Old 10-09-2007, 09:10 PM   #13
alphagoose
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Quote:
Originally Posted by Broxma View Post
I'm a little hesitant to reply to this again but oh well.
Curious as to why you want the GM solenoid? The stocker is good for 18psi in most cases and all the free XPT maps are tuned to use the stock solenoid. None of the stage 2 maps go above 17 PSI so it's not a kink in the armor so to speak.

My opinion of the free XPT maps...

Stage 1 map is a modified stock map with too high a boost setting. After flashing it twice, both cars dropped IAM's due to knock. It is easily adjusted to be a usable map as I have found it. Left alone, it seemed to work better on a stage 2 set up car than a stock WRX.

Stage 2 map is a bit to conservative but I think I know why. The stage 2 map is made for people to have a beginning map to self tune with I think. The boost setting is low, fuel map is a slightly modded stock one, same with timing. It works though and won't drop IAM's or pull timing even under Texas Heat midday conditions.

The free XPT maps across years are the same map, just copied to a different ECU ID. They work, but in their freeness, they are also very minimally tuned. If your going the XPT route, the 52$ maps seem to be the way to go.

My opinion on your self tune idea....

I don't have a job thanks to my wonderful wife, and I have been "Self Tuning" a stage 2 map for my car every day for 13 days, learning as much as I can, googling, reading, re-reading, more searching, road test, tune, reflash, road test, tune, etc. I've been doing this for about 6-10 hours a day. My conclusion? I still know nothing. I wouldn't trust my skills with any car but my own due to utter lack of confidence and knowledge. I do have a map that I made. It does work, and works better than the Free XPT stage 2 map AFAICT, not knocking that map. It's not hard, but it's not easy. Anyone can make a map that will run. Making it run better is the goal though. If you don't have the time, or the real desire to basically school yourself for several weeks, get the free XPT or the 52$ one, and flash and forget.

Whatever you do, I'll be glad to help.

/Brox

glad to hear, thanks broxma. ive just been getting tired of trying to work on my car. ive been too busy and been getting nothing done, and i am begining to realize that my car isnt the most important thing right now, so i just want it to run good, doenst need to be fast. i think im just gunna buy the 52 dollar stage 2 map...and my car is good enuf, i have to sell it next year anyway when i go off to college.
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Old 10-09-2007, 10:41 PM   #14
WeldingHank
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the GM BCS works differently than the stock unit.

the stock BCS is a bleed style, so there is always some boost pressrure pusing against the wastegate actuator, allowing it to crack open in some cases.

the GM BCS is an interupt style solenoid, NO PRESSURE is allowed to the wastegate actuator significantly reducing spool up times and also allowing for better control over boost rise/fall.
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Old 10-09-2007, 11:21 PM   #15
brettm
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couple things:

First, open up your rom in enginuity and go to the closed loop section, select the closed loop delays table and zero the whole thing out. This should fix the open loop transition delay that is seen in 04+ WRX's. This way when to run closed loop will be determined solely based on your fuel map.

Second, forget about the gm bcs until you know your way around tuning. You don't necessarily need to be an expert but tuning for a gm bcs is definitely not for a newbie. When you are finally ready to make this leap, you can find part numbers in the gm bcs sticky and order from rockauto.com. pigtail and bcs should run you about $35.
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Old 10-10-2007, 12:11 AM   #16
alphagoose
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Quote:
Originally Posted by brettm View Post
couple things:

First, open up your rom in enginuity and go to the closed loop section, select the closed loop delays table and zero the whole thing out. This should fix the open loop transition delay that is seen in 04+ WRX's. This way when to run closed loop will be determined solely based on your fuel map.

Second, forget about the gm bcs until you know your way around tuning. You don't necessarily need to be an expert but tuning for a gm bcs is definitely not for a newbie. When you are finally ready to make this leap, you can find part numbers in the gm bcs sticky and order from rockauto.com. pigtail and bcs should run you about $35.
xpttuning has a map stg 2 map with gm bcs. so i dont belive i would need to worry about tuning for the bcs. or am i wrong?
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Old 10-10-2007, 11:05 AM   #17
brettm
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Originally Posted by alphagoose View Post
xpttuning has a map stg 2 map with gm bcs. so i dont belive i would need to worry about tuning for the bcs. or am i wrong?
If you buy a map that is tuned for the gm bcs then you will be fine. Just don't start trying to tune for one on your own. They aren't that hard to tune, its just that a gm bcs shouldn't be the first thing you try to tune for. Wait till you have a little more experience.
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