Jdm swap with avcs - Subaru WRX Forum
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post #1 of 12 Old 05-02-2016, 11:38 PM Thread Starter
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Jdm swap with avcs

Ok so my stock motor does have avcs. If i buy a jdm that has it, i should be fine and not have to do mods besides the cam pullies. Right? Can anyone help?
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post #2 of 12 Old 05-03-2016, 07:04 AM
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need more info on your car.

if you have avcs in an 03 (i assume 03 from your username) your car already has had a motor swapped. do you have single or dual avcs? is it a ej205, ej207, ej255 or ej257? are you running stock engine management?

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Last edited by titter; 05-03-2016 at 08:45 AM.
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post #3 of 12 Old 05-03-2016, 11:54 PM Thread Starter
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From what i no it hasn't had a motor swap done. How do i tell if a have dual avcs? My engine is a ej20t. It's not an sti. I do have a access port V1 or 2. I'm not really sure. It's been parked for a while.
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post #4 of 12 Old 05-04-2016, 06:29 AM
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you still left out the year model of your car. you can tell if you have dual avcs the same way you can tell if you have single avcs... there is just two of them. (technically four)

ej20t isnt a real engine code.


source wiki:
EJ20T

This is not actually a valid code from Subaru, but is mostly used by enthusiasts and mechanics to describe the entire line of 2.0 litre turbocharged engines that have been available over time. The practice began with the designation of the USA-spec turbo, commonly referred to as the EJ22T, and the habit of referring to any turbocharged engine as a "T" began. When referring to the EJ20T, one is speaking of one of the following:
EJ20X, EJ20Y, EJ20G, EJ20K, EJ205, EJ207, EJ20H, EJ20R, EJ206, EJ208

find out more about your car and get back to us. the only engine that came in the 2003 usdm wrx is the ej205 non-avcs. if you have anything else in there, you have had a motor swapped.

good luck!

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Last edited by titter; 05-04-2016 at 11:42 AM.
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post #5 of 12 Old 05-04-2016, 11:43 AM
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You will need to swap out the crank sproket as well with the intake cam sprokets.
Along with many other parts like the intake manifold, TGV's, coolant flow line, the exhaust manifolds and I believe the uppipe as well and a tune after all is said and done. The USDM is alot different than the JDM so make sure you do your homework before jumping into it.
Its been a while since I swapped mine out but find out exactly what you have first.
Not sure how you have AVCS in a 03 either unless it was put in after words.

Whats wrong with the engine you have now?

Cobb Accessport Stage 2.
JDM ej205 swap.

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post #6 of 12 Old 05-04-2016, 02:37 PM Thread Starter
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Thank u guys for all your info! My car is an 03. I've spoke with the dealer here in albuquerque nm. Gave them the Vin and i was told it was avcs engine. It does have coils for each spark plug. My old motor has a very weak cylinder 4 on compression test.
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post #7 of 12 Old 05-04-2016, 07:40 PM Thread Starter
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Ok so i looked at the motor today finely. I'm almost positive is a ej205
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post #8 of 12 Old 05-05-2016, 10:44 AM
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Take some pics if possible.

Cobb Accessport Stage 2.
JDM ej205 swap.

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post #9 of 12 Old 05-05-2016, 01:10 PM Thread Starter
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Here's a few pics. I also read last night that the 03 sonic yellow has a different model code. Could this be a factor? The Vin tags say it's a ej205 and it does have coils on each spark plug. So that does mean it has avcs right?
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post #10 of 12 Old 05-05-2016, 01:55 PM
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take a pic of left and right side of the timing cover
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post #11 of 12 Old 05-05-2016, 02:10 PM Thread Starter
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Lt side
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post #12 of 12 Old 05-05-2016, 02:15 PM Thread Starter
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I'm having an error message up leading the right side
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