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04-22-2010, 10:24 PM | #1 |
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HELP Please! 05 STi swap...immobilizer has stumped us.
Hey guys.
Loomin, Minifreak, and I are swapping an 05 STi motor into a 04 wrx wagon as we speak. All the mechanical has been done, and Minifreak has been busy as a bee wiring. So the scenario is: We only have the motor+wiring harness out of the 05STi ...The 05Sti ECU we have is from a different car. You guessed it..... We are now stumped by the immobilizer from the 05 STi. I've just read through this thread: HERE I'm now thinking the cheapest way to get the car running is to find an 04STi ECU....... Has anyone here done this conversion before that can help shed some light and help us out Thanks in advance! frustrated.... -Charles
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Last edited by milkface; 04-22-2010 at 10:33 PM. |
04-22-2010, 10:38 PM | #2 |
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is it possible to give an ecu id or the original vin number of the car where the 05 ecu came from, and get the keys cut?
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04-22-2010, 11:36 PM | #3 |
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I always was under the impression the immobilizer was in the steering column in a small box.
so ya you need column/key/ecu from the same car. otherwise I'd find an 04 ecu like you said. |
04-22-2010, 11:55 PM | #4 |
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Isn't there a way to by-pass the factory immobilizer? I remember chatting with chp_stx a long time ago and he mentioned something about that.
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04-22-2010, 11:58 PM | #5 | |
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Quote:
And Charles you need 04 wiring and 04 ECU, or like Jacky said, ask Minifreak to fire up the ECU and get the ECU ID and VIN Number to get a key cut, if and only if you also have the immobilizer sensor with that 05 STi wiring |
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04-23-2010, 12:01 AM | #6 |
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I have no idea if it could help or not, but if you need it, I have an 04 STI steering column
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04-23-2010, 12:13 AM | #7 |
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or u can always go stand alone em LOL
not the cheapest way, but the least troubled one. |
04-23-2010, 12:30 AM | #8 |
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Guess the options are 04 STI ECU or standalone.
Cheapest and most cost effective is AEM for sure. |
04-23-2010, 12:48 AM | #9 |
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I thought about just flashing the ECU with an 04 map but the pins are different so that's probably not going to work...
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04-23-2010, 01:14 AM | #10 | |
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OR find the keys and tape it to the integrated unit. |
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04-23-2010, 01:41 AM | #11 | |
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really, you're only (and best) option (without getting crazy) is to use an 04 ecu...IIRC the 04 will work fine, you just gotta switch a couple pins around....i think 4 in total....i cant remember which ones, but look at the pin diagrams....if you're still stuck tomorrow i'll look at em for you |
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04-23-2010, 01:47 AM | #12 |
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Oh, I don't work like a bee, more like a turtle
Today Loomin stopped by to help out and we made really good progress It would have taken me 5 times longer if it wasn't for his help http://www.shareview.us/video/4083/R...ole-time-lapse Memory card ran out of space so on I only managed to get part of the disassembling... |
04-23-2010, 01:50 AM | #13 |
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well If you want to test it. I've got an 04 STi ECU sitting around.
but I dunno if it will work with 05 harness probably not. |
04-23-2010, 02:04 AM | #14 |
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^there's your answer! pretty sure it's 5 or 6 pins that need to be swapped. i read it somewhere.
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04-23-2010, 02:07 AM | #15 |
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btw, must have been fun with the dash out eh?
reminds me back to this day last yr: |
04-23-2010, 02:11 AM | #16 | ||
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man i cant find it anywhere. can you see if you can find it? |
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04-23-2010, 02:43 AM | #17 |
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screw it i pulled up both ecu pinouts and cross-referenced them. 5 pins are different. they just swapped them around to confuse people.
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04-23-2010, 02:50 AM | #18 |
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No it's so some would be thief wouldn't come to a 05 STi and just simply plug in an 04 STi ecu to bypass the immob. So some people say.
as for the ECU. I got that for my own build, so I'll have to think long and hard about that one. Think it's an ecutek software, but gotta comfirm it. if not it would have been cobb. |
04-23-2010, 03:01 AM | #19 | ||
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pray for a blank ecu or opensource! |
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04-23-2010, 03:06 AM | #20 |
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maybe charles could convince you to let him borrow it until his own 04 sti ecu comes in the mail so he can drive the car temporarily on behalf of charles...... pppppplease?
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04-23-2010, 03:18 AM | #21 |
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A quick search seems to say any 04 ECU for 2.5L turbo engines should work, it just needs to be tuned for the new engine.
http://forums.nasioc.com/forums/show...cu+differences That ECU should have some sort of aftermarket engine management as the car that it come out of had a 20G and aftermarket injectors of an unknown size installed. |
04-23-2010, 03:58 AM | #22 | |
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Vehicle speed sensor A/C switch Ignition switch Test mode connector and most of all, the fuel pump controller. directly swapping an 04 ECU into an 05 will certainly cause it not to start. |
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04-23-2010, 04:51 AM | #23 |
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Yeh the 04 STi ECU would be the perfect solution for this.
I guess the thread I originally posted pretty much said it all. I think there was a few for sale at RR in an old FS thread to try, and minifreak saw one on their site for 150....If I'm lucky, they'll still have one. Calling first thing in the AM! That's so awesome for figuring the Pin-out Loomin! If RR does not have anymore 04 ECU's.... there's always THIS sale that Loomin just found as a quick plug and play solution. bit more $ though. Can't believe we missed this issue prior to swapping. Just one of those things, DOH! Thanks for chiming in peeps. Will update to see how it all goes. WTB: 04 STi ECU ! |
04-23-2010, 10:07 AM | #24 | ||
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04-23-2010, 10:23 AM | #25 |
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