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  #1  
Old 13-12-2008, 12:09 AM
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Default STI ECU Install

Hey guys, need to get a STI ecu fitted to my 99 WRX. I am about to drop in a 99 STI engine and need someone to install the ECU. Can anyone recommend a place to do the job. Does anyone know a rough estimate on how much it would cost and can the STI ecu be tuned?

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Old 13-12-2008, 01:00 AM
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Ecu cannot be flashed for 99-00 Gc8 sti..... Power FC or Possum Link are the cheapest options for tunable ecu for that era of Sti.

is it jap spec ecu?.....if so it's tuned for 100 ron.
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Old 14-12-2008, 12:27 AM
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Yeah, It's a 99 Jap STI ecu. So are you telling me i need to get a power FC or possum link to get my engine to run properly? I read somewhere else that there could be possible pinging on 98 oct.
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Old 14-12-2008, 03:11 AM
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If you want have your car tuned, as in max possible power for any modifications then you'll need to go for a Possum Link or Power FC.

99-00 Sti ecu cannot be flashed (re-programmed).

Your engine will run fine on 98 with the Jap ecu, just don't boost past 16.5 psi and all should be good.

I'd be doing a fuel pump before running the STI engine & computer though(It's cheap insurance against a lean out).
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Old 14-12-2008, 10:19 AM
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Thanks for the advice, I never thought about the fuel pump. I'm trying to get as much information as possible so i don't ruin this engine. Would you reccomend a place to get the ecu fitted?
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Old 14-12-2008, 10:28 AM
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Old 15-12-2008, 11:08 AM
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Can anyone tell me a really good fuel pump to use. I know walbro and bosch are good but does anyone know the model of pump best suited. Cheers
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Old 15-12-2008, 11:56 AM
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Walbro xx342. Can't remember what the xx letters are, but the last 3 are 342. It's a 255l/hr (500hp) drop in, plug up fuel pump
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Old 15-12-2008, 11:28 PM
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Thanks a lot, i'll take a look on ebay and see if i can order one. I seem to buy everything from there these days
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Old 15-12-2008, 11:39 PM
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Skip ebay and buy it locally. There were a few fakes going around at one stage. Pay the extra few dollars for peace of mind.
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