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Old 07-06-2006, 01:27 PM   #101
CarWidow
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nope. utec is a 'piggyback', which literally means that it sits atop the stock ecu, and plugs in to that.
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Old 07-06-2006, 02:44 PM   #102
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The UTEC is not a standard piggyback. I'd call it a hybrid. It takes complete control of fueling, timing, and boost control when you stomp on it. But it certainly is not a standalone as it can't control idle and really shouldn't be used for cruise. It doesn't determine fuel pump duty cycle and a bunch of other smaller functions of the standard ECU either.

It is FAR more than what you typically call a piggyback, like an SAFC. Calling it a simple piggyback is not really fair.

Physical install is irrelevent for calling something a piggyback or not. I would never use the location as a justification for categorizing the capability of a unit.
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Old 07-06-2006, 03:09 PM   #103
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wow. everyone has their own opinions, but iirc, in the faq's on here, there are several main categories. plug and play, piggyback, and standalone.

sounds like the guy has some research to do either waybased on his question he's got a little ways to go.

*edit* found it. good read if you are still deciding which way to go.
http://forums.nasioc.com/forums/showthread.php?t=795608
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Old 07-06-2006, 03:25 PM   #104
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I don't care what the FAQ says, I can think for myself. The UTEC should not be categorized with the almost utter crap that is the SAFC, Mafterburner, SMT-6, etc.

The UTEC with OLF directly controls timing, fueling, and boost control once it has "taken over".

"Piggyback" is generally for units that intercept the MAF or MAP signal between the sensor and ECU and alter it according to the tuning tables in the piggyback device to (veinly) to control fueling. Some also intercept and alter the crank signal for timing control. Both are really dumb ideas since the factory ECU has active feedback loops for both fuel and timing control. Often what you just tuned will get tuned right back out after driving around for a while. At best you can only try to tweak the high load areas, where you are guessing the factory ECU is already in open loop (you can never be sure since OL on the factory ECU is based on many more things than just TPS or MAP), so the feedback loops in the ECU are turned off and your tune won't get "tuned back out" by the factory ECU. The UTEC has never done this for timing and hasn't done this for fueling since OLF was introduced.

It's a disservice to throw the UTEC in a category with devices that are pretty much complete jokes and have little place in a tuned car. This is also discounting features like spare solenoid control, FFS, two-step LC, shift lights, etc.

I just cringe every time someone calls the UTEC a "piggyback". Kinda sorta, maybe, but it should not be categorized with what is normally called a piggyback.
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Old 07-06-2006, 03:29 PM   #105
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Fair enough. You might not care what the FAQ says, but someone just starting out might. Note the title: 'UTEC Basics'.
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Old 07-06-2006, 04:06 PM   #106
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piggyback, piggyback, piggyback

Just causing trouble.

As "Freon" says, the UTEC is not a piggyback. Shame about that quote in the FAQ thread but the UTEC does not fit into any of those areas.
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Old 07-06-2006, 04:14 PM   #107
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Yeah, honestly I think it would be best if someone 'just starting out' would not be told it is a piggyback. It's giving piggybacks way too much credit and cutting the UTEC short. I find myself calling it a hybrid, but could care less, as long as it isn't called a piggyback (or standalone for that matter, which is also misleading).
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Old 07-06-2006, 04:21 PM   #108
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Hey whatever blows your dress up! Talk to Unabomber
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Old 09-05-2006, 10:21 PM   #109
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o5 sti "stage 2" w/ meth and utec. do i need to upload new software for the utec. what exactly do i need to do?
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Old 09-06-2007, 08:19 PM   #110
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I'm sorry, I just recently took an interest in the launch controller (EVO's don't need to do anything for this function to work by the way) do I need to to by something for this function to work, or is it something with the remote you plug up to have it work?

I've tried searches too, so don't insult me by putting me on blast if you know a link then thanks. Hate that about forums

everything on launch controllers doesn't work on explaining what I read in the utec manual.
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Old 09-07-2007, 11:18 AM   #111
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Quote:
Originally Posted by shift_rex View Post
everything on launch controllers doesn't work on explaining what I read in the utec manual.
Since you read the UTEC manual (try re-reading Apendix E - Launch Control), then you have already answered some of your own questions.
Quote:
Originally Posted by shift_rex View Post
do I need to to by something for this function to work, or is it something with the remote you plug up to have it work?
Two questions with the same answer: Yes
Yes you do have to get (by, or buy) the UTEC Remote Switch with clutch switch flying lead, and yes you do have to wire it to the clutch switch to make it work. If you already have the remote switch with the flying lead, then no, you do not have toto by/buy it.

Once you have wired the UTEC Switch flying lead wires into the clutch switch (replacing the cruise control wiring), then you can change the parameters under User Constants for rev limit and limit control type.

Now you can plant your foot on the gas and not hit the stock rev limiter. Now you can let the clutch out while the engine is singing at the RPM that you select (should be the point of highest torque for your setup, dynos are good to find this point) and if your valvetrain/bearings/internals/clutch/transmission/driveshafts hold up, you will have better luck "launching" your car.

Don't forget to read the warnings about how you can damage your car, check your spelling, and grammar.

And oh yeah, nice way to wait 365 days exactly to resurrect the post.
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Old 09-09-2007, 08:51 PM   #112
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Quote:
Originally Posted by zaxrex View Post
If you already have the remote switch with the flying lead, then no, you do not have toto by/buy it.
hmmm, toto? look how easy it is to make a grammer error zaxrex

Quote:
Don't forget to read the warnings about how you can damage your car, check your spelling, and grammar.

And oh yeah, nice way to wait 365 days exactly to resurrect the post.
Well I knew better then to start a new thread here, cause guys can't wait to prove how much smarter they are then you or a smart remark to make you feel stupid cause you have a question.

I mean I have the remote, but the fly lead has the "extra" wires coming off of it? I did read the instruction but it was a little confusing. It just looks like you unplug the cruise and plug the remote if you have the right equipment? Is it really that simple?
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Old 09-10-2007, 07:45 AM   #113
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When you unplug the cruise control clutch switch you will see two contacts. On the lead side(not the switch), you need to put a jumper across those contacts, or close the circuit by crossing the yellow-green and yellow-red wires together that feed into the plug.
Now, on the switch side, you have to attach the flying leads from the map selector switch to the leads from the switch. There is no plugging in, you have to do some wiring, or grab the same molex connector from a trashed Subaru - wire it - and then plug it in.

Hey Shift, I was poking you with sticks, but they were pretty blunt. You used "to to" and I was making fun of you by saying toto. Laugh all you want, I did.
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Old 09-10-2007, 08:27 PM   #114
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Quote:
Originally Posted by zaxrex View Post
Hey Shift, I was poking you with sticks, but they were pretty blunt. You used "to to" and I was making fun of you by saying toto. Laugh all you want, I did.
Don't worry, I laugh all the time, even if no one else is!

Well my wife is leaving me behind for a family reunion this weekend as it's my turn to work the weekend at the old Job Sat. I'll just have to carry my happy old self under there and try to see what is what.

I'd def have to do some wiring though, CAP and Circle near me never have any thing for me but I can find anyone else stuff for their car... isn't that the way it works.

Well thanks, I may be back so have some more zinggers ready!
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Old 12-14-2007, 07:54 AM   #115
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Anyone know where I can find the UTEC Manual online anymore? I cannot find it on their site!
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Old 12-14-2007, 07:57 AM   #116
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Uh, never mind.. I googled it.. it is on their site, just not easy to see..


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Old 04-28-2008, 07:29 PM   #117
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Hi guys, seeing as I am a new member and I have not made any replys yet I was wondering if any of you guys would be able to offer me help. I wish I could make a thread about this but unfortunately I havent posted enough replies. I own an 07 WRX TR with A TurboXS Delta UTEC and an Invidia DP and UP. The other day I plugged the serial cable into the UTEC, then to my labtop and started the program. The hyperterminal screen came up and the program started. All of a sudden the Screen started spazzing out and the hyperterminal program froze. Now I dont understand why I cannot go any further than the home screen, but I have taken all electro static discharge precautions so i am hoping i did not fry the ECU. I would kindly appreciaate feedback thanks
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Old 04-29-2008, 10:35 AM   #118
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I'm not sure myself... did you take the steps to connect the hyperterminal or can you not even do that before it freezes? Do you have enough space on your laptop/any technical issues with that? If you don't get any responses on here, I would contact TXS directly and see what they have to say. They're pretty helpful.
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Old 05-01-2008, 10:29 AM   #119
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I have all properties set correctly, including COM port settings and property settings. Now when I follow the start up procedure, connect the serial cable to the UTEC, turn the ignition on, connect the cable to the laptop, open up the hyperterminal and call to the correct COM port. From there the home menu screen will pop up on the laptop, but it appears to glitch constantly, throwing random symbols and letters onto the screen at times. From here, either the hyperterminal will freeze or not allow me to access any screens further than the home menu.
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Old 05-01-2008, 07:14 PM   #120
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Sounds like a problem with your lappy unfortunately. Is it pretty new/up to date programs wise? Do you have any techie friends that can help you with it?
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Old 05-05-2008, 07:27 AM   #121
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Quote:
Originally Posted by Tucker587 View Post
I have all properties set correctly, including COM port settings and property settings. Now when I follow the start up procedure, connect the serial cable to the UTEC, turn the ignition on, connect the cable to the laptop, open up the hyperterminal and call to the correct COM port. From there the home menu screen will pop up on the laptop, but it appears to glitch constantly, throwing random symbols and letters onto the screen at times. From here, either the hyperterminal will freeze or not allow me to access any screens further than the home menu.
Make sure you have all the advanced settings correct, such as baudrate etc. If those aren't in sync, it'll crap itself, and the UTEC has settings other than Hyperterminal's default.
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Old 06-20-2008, 04:54 PM   #122
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Ok, so here is the deal; I have been searching through these forums the past couple days trying to figure what kind of EM to go with.

Right now my setup looks like this:
'04 WRX
-TXS TBE
-K&N Typhoon intake
-STi TMIC

And I have the TXS Upipe to put on once I figure out this EM stuff. With my current setup I have thrown the P0420 CEL (cataltic convertor ineffeciency) obviously because of the turbo-back exhaust.

So the question is, will the UTEC 1) fix this code 2) is the UTEC the best way to go about fixing my CEL and gaining the performance of having EM? Or should I look into the less expensive CobbAP? Or maybe no EM at all and do the electrical fix to eliminate the CEL?

I'm pretty noobish when it comes to EM so any and all help much appreciated!!!
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Old 06-20-2008, 05:39 PM   #123
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Quote:
Originally Posted by theSNOOTRS View Post
So the question is, will the UTEC 1) fix this code 2) is the UTEC the best way to go about fixing my CEL and gaining the performance of having EM? Or should I look into the less expensive CobbAP? Or maybe no EM at all and do the electrical fix to eliminate the CEL?

I'm pretty noobish when it comes to EM so any and all help much appreciated!!!

1) No the UTEC will not fix the code. There is a simple hardware fix (less then 5 dollars) or you (or a knowledgeable friend) can do a free opensource reflash of your ECU to fix it.

2) UserTunableEngineComputer Do you already own a laptop? Do you like to tinker? Are you ready for a learning process of trial and error realizing that it will take some time to get it where you like it? If so... dive into a utec.



Sometimes in life you just want to Up Up Down Down Left Right Left Right B A Start and beat the game. But sometimes the journey is more rewarding then the destination.
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Old 06-25-2008, 02:52 PM   #124
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... or at least I thought there was a "Select" in there

... +1 for the journey!

Last edited by Psipwrd; 06-25-2008 at 02:55 PM. Reason: oops
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Old 04-27-2009, 04:06 PM   #125
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I'm doing a swap & I'm thinking about using the UTEC as my EM, will I be OBDII compliant with the UTEC? Basically I just want to have a bad ass street car (built 205 in a GM8) but I want it to be street legal

sorry if this is a stupid question, I'm new to this, this is going to be my first build/swap
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