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Old 01-20-2021, 08:51 PM   #1
LakixPompa
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Member#: 521740
Join Date: Jan 2021
Default 2004 WRX Engine EJ205 Swap

Hello, I have a 2004 Subaru Wrx. I bought it about a week ago with leaking oil. Apparently, the engine was already swapped, but now ill be doing it again, the issue is that I don't know whether it's a jdm or a usdm engine. Based on how the front of the engine looks, I don't think it has avcs, whereas I'm still confused whether it's a jdm or a Usdm. It's important for me to know this because id like to have an easy plug-in swap, where all the connectors plug right in. I don't know if even buying an avcs engine would work with what I have there at the moment. I'm planning to buy an engine from eBay for around 1k, but I need to know what engine exactly so it could be an easy swap. Here are some photos of the engine, hopefully, you guys could help me out.

Engines I'm considering to buy - https://www.ebay.com/itm/254490005464 or https://www.ebay.com/itm/04-06-JDM-S...eGLeD&LH_BIN=1

Photos of my engine - https://imgur.com/a/tIECbT6
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Last edited by LakixPompa; 01-20-2021 at 10:08 PM.
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Old 01-21-2021, 09:48 AM   #2
snow_bound26
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Member#: 395793
Join Date: Jul 2014
Chapter/Region: AKIC
Location: Split time between SLC and Lak
Vehicle:
2005 92x Aero
Beige

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Post thread in one place only. Try not to clutter the forum with multiple threads that are exactly or close to the same. I responded to your other thread. And all of the info you need is in here if you search. Ask mods to merge the 2 threads.
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Old 01-21-2021, 04:15 PM   #3
LakixPompa
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Iím sorry Iím new to this .not sure how to use it yet
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Old 01-21-2021, 09:19 PM   #4
snow_bound26
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Member#: 395793
Join Date: Jul 2014
Chapter/Region: AKIC
Location: Split time between SLC and Lak
Vehicle:
2005 92x Aero
Beige

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No problem. Was just giving you a heads up.
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Old 03-02-2021, 08:31 AM   #5
wooshwoosh
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Join Date: May 2020
Chapter/Region: International
Vehicle:
2005 GDB-E

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To ascertain whether you have a JDM AVCS or non JDM engine, you need to get one of the plastic timing covers off from the front of the engine (3 pieces, left, center and right) like shown:
https://imgur.com/a/OgC4Mkf

This is a picture of my 2005 WRX STi's EJ207 engine. It is an AUS DM vehicle which is almost identical or equivalent to the STi V-Limited JDM model. This has single AVCS on the intake cams only. The shiny camshaft gear, is AVCS, while the bottom black gears are non AVCS.

That aside your ebay listing is for a DUAL AVCS engine - this will not work with you as 04 WRX's did not come readily available with DUAL AVCS in any shape or form. If you decided to go ahead with it, you would be swapping over not just the engine, but ECU, locks and immobilizer.

Sorry to say but this is far from an easy plug in swap.
Hope this helps.
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