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Old 08-21-2008, 12:35 AM   #1
treystoys
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Member#: 97436
Join Date: Oct 2005
Chapter/Region: South East
Location: Metairie, Louisiana
Vehicle:
03 WRX stage 2.2
white/w/ce28n's

Default 05 wrx with jdm ver 8 sti wiring issue...??

Alright guys...I went this route after my 205 spun a bearing because its a solid motor, and suppossedly drop in. Motor runs fine, works w/o the avcs with the ej205 ecu...no issue other than the TGV codes there. I have a ver 8 jdm ecu as well, and over the past few days have gotten the avcs wiring taken care of. I used the IA performance harness from the ecu to their places in the engine bay plugs, and the wiring from a jdm engine harness for the avcs wiring and connectors, and have the avcs up and running...logging confirms this, both cams advancing and retarding correctly. My issue is that from the time the ignition key is turned on engine running or not, the cel continuosly flashes. The green plugs under the dash are not connected so that simple part is out. No codes have showed up using both my own scan tool, and one that the local autozone tried today for me. I am working with Clark Turner on the tuning part of all this, and he has been great. This flashing cel does not happen with the usdm computer, only when the ver 8 ecu is running the show. Now, one odd thing to me atleast was that if I plug the green connectors together and start the car like this, the cel goes away...almost opposite of what it should do. I am basically stumped, and Clark actually asked me to see what you guys think. I'm hoping he'll chime in and further explain what we've tried in order to remedy this. Would me not using the entire jdm engine harness as oppossed to me just using the avcs portion cause something to happen like this?...again though, all seems to be functioning, and same engine, same harness with the usdm ecu, no flashing cel.

Thanks in advance guys...I'll try and keep up with this as we go, I'm not even sure I've explained whats going on really well, so if there's confusion, ask me about it.

Trey
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Old 08-21-2008, 02:49 AM   #2
chudlo
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Hey man, I sent you a very alarmed PM that you can probably ignore now.

Couple of questions:

- Do you have the shielded wires grounded in the ECU and in the engine bay?

- Have you talked to Stephen at IA Performance about the harness? He has probably heard this problem before from other customers.

- Maybe you need to do a continuity check to make sure all the wires are seated and connected properly after adding the AVCS wiring? I actually wired one of the AVCS sensors backwards the first time. I know you said you logged the avcs but something else may have gotten loose.

- Have Performance use their scanning tool. They may be able to give you the code number. (They won't be able to scan the whole ECU or flash it, just read CEL codes.) They were able to tell me what my 2 codes were after my swap.

- The V8 motor wants to see two O2 sensors. Did you install them into your header and downpipe? Did you defeat them somehow?

- Maybe I should look at my green plugs to see if they need to be plugged together?



Just brainstorming here at 1:45am.
Hope it helps some. You have my number.


chad
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Old 08-21-2008, 08:16 PM   #3
treystoys
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white/w/ce28n's

Default

Found the issue guys...on the usdm engine harness, one of the emisions connectors, EGR valve...forgot...anyhow, it was removed pre ver 8 motor, and a jumper was put in its place...removed that metal jumper and no more cel! Ho rahh!

Thanks guys

Mods if you wanna delete this its cool!

Thanks

Trey
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Old 03-27-2011, 03:13 AM   #4
ultimatt
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Quote:
Originally Posted by chudlo View Post

- Do you have the shielded wires grounded in the ECU and in the engine bay?


chad
I got my version 8 swap running today, and while it seems to run well, there is a flashing cel.
There was no code associated with this flashing cel.
I followed the DS1 guide and didn't ground the shielding wire grounded in the engine bay.
Would this be a possible source of the flashing cel?
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Old 03-27-2011, 10:50 AM   #5
Vlad
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what year chassis?
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Old 03-27-2011, 11:49 AM   #6
ultimatt
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Ah, sorry.
It's a 2004 WRX chassis.
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Old 03-27-2011, 12:08 PM   #7
Vlad
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Does your chassis have that "pcv sensor" plug? Your original engine would have that grey sensor right next to the front of the turbo.
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Old 03-27-2011, 12:13 PM   #8
ultimatt
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Yes, i believe it does.
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Old 03-27-2011, 04:27 PM   #9
Vlad
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So, maybe the answer for you is like above...
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Old 03-29-2011, 02:22 AM   #10
ultimatt
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I tried the ground, and that didn't solve my issue.

This did though

http://forums.nasioc.com/forums/show...6&postcount=20
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