2004 WRX Engine EJ205 Swap

LakixPompa · 01-20-2021, 08:51 PM

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

* Registered users of the site do not see these ads.

snow_bound26 · 01-21-2021, 09:48 AM

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.

LakixPompa · 01-21-2021, 04:15 PM

I’m sorry I’m new to this .not sure how to use it yet

snow_bound26 · 01-21-2021, 09:19 PM

No problem. Was just giving you a heads up.

wooshwoosh · Today, 08:31 AM

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.

01-20-2021, 08:51 PM	#1
LakixPompa Scooby Newbie Member#: 521740 Join Date: Jan 2021	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 * Registered users of the site do not see these ads. Last edited by LakixPompa; 01-20-2021 at 10:08 PM.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

01-21-2021, 09:48 AM	#2
snow_bound26 Scooby Specialist Member#: 395793 Join Date: Jul 2014 Chapter/Region: AKIC Location: Split time between SLC and Lak Vehicle: 2005 92x Aero Beige	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.

01-21-2021, 04:15 PM	#3
LakixPompa Scooby Newbie Member#: 521740 Join Date: Jan 2021	I’m sorry I’m new to this .not sure how to use it yet

01-21-2021, 09:19 PM	#4
snow_bound26 Scooby Specialist Member#: 395793 Join Date: Jul 2014 Chapter/Region: AKIC Location: Split time between SLC and Lak Vehicle: 2005 92x Aero Beige	No problem. Was just giving you a heads up.

Today, 08:31 AM	#5
wooshwoosh Scooby Newbie Member#: 514853 Join Date: May 2020 Chapter/Region: International Vehicle: 2005 GDB-E	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.