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What Years and Models ECU's are compatible with my 2005 Subaru Impreza 2.5RS?

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I'm asking because i am trying to repair my car and it needs a new ECU.

 

I was looking at a local Pick-A-Part and they have about a dozen Subaru's,but the newest one is a 2003...

 

Will anything 2003 or slightly older work? Or will i have to buy online?

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if your 2005 has an immobilizer then you can't just swap the ECU like you can on 04 and earlier models.

 

for parts in general though: 

www.car-part.com and the cheapest one shows up on your doorstep rather than driving, walking, looking, striking out....

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+1 on Car-part.com....I'd add your '05 is 'unique' in that it's the 1st year of the return of the MAF-based systems of the EJ253 AND the year prior to the i-avls variable cams on the '06+ models..

 

I'd bet you're limited to ONLY '05 Impreza non-turbo and MAYBE '05 Foresters, and it needs to match your transmission.

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if your 2005 has an immobilizer then you can't just swap the ECU like you can on 04 and earlier models.

 

for parts in general though: 

www.car-part.com and the cheapest one shows up on your doorstep rather than driving, walking, looking, striking out....

 

I don't think it does,how would i tell?

+1 on Car-part.com....I'd add your '05 is 'unique' in that it's the 1st year of the return of the MAF-based systems of the EJ253 AND the year prior to the i-avls variable cams on the '06+ models..

 

I'd bet you're limited to ONLY '05 Impreza non-turbo and MAYBE '05 Foresters, and it needs to match your transmission.

 

 

I do have a question for you guys.

 

I have been thinking it is the ECU,but a coworker thinks it might be the starter.

 

So my car got flooded in Texas it got up to the speakers in the door.

I already checked for water in the oil and there was none.

 

 

At first it had no power at all so i bought a charger and tried to charge it,it had no effect.

So then i bought a new battery and now it's getting power the radio,lights and windows all work.

 

But when i tried to start the car stuff dimmed like normal,but nothing happened, no clicks or noise of any kind.

 

What do you guys think it is?

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Starter is a definite possibility since it dims (meaning the starter is being energized but not rotating.  Remove the starter and take it to a chain auto parts store and they can test it for free.  Much better option than an ECU.

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I doubt it needs to come from an RS, since in 2005 that package did not equate to much. Basically WRX front fascia and special RS floormats.  and they were all 2.5L SOHC. Car-part.com is littered with them cheap. $25-75

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