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Old 30-01-2016, 05:39 PM
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Default V6 Sti ecu installed now is boost low

Hey guys

I have a my99 wrx audm with fmic vf34 and turboback exhuast; i have just installed a jdm v6 sti ecu j2 and after changing the required pins over everything starts and runs well feels much more responsive at lower rpm.

Only issue is that before the ecu swap my standard e3 ecu was running around 15psi and now with the v6 sti ecu im only getting 12-13psi, i am not running any boost control mods although i have manual boost tap lying around somewhere which i will use if needed.

Has anyone else had any experience with this maybe its normal and i should just wind it up! i just presumed with the sti ecu it would run more boost.

Any help would be great

Thanks

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Last edited by Pete8; 30-01-2016 at 05:42 PM.
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Old 30-01-2016, 07:00 PM
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Normal.

I had my MY99 WRX running V6 STI ECU and it ran at 13 psi when letting the ECU do all the boost control.

I ended up buying a Turbosmart e-Boost controller (great piece of kit!!!) and wound it up to 17psi. It came alive then!

Just out of curiosity.... does your STI ECU have "VER 6 STI" written on the top in black marker pen?
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Old 30-01-2016, 07:23 PM
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Great thanks for the info doesn't sound like a big issue I will stick the boost Tee on tommorow and wind some boost into it.

My ecu has two stickers on it one with v6 sti ej207 and one with gf-gc then some Japanese writing.



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