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Engine Management and ECU Remapping This section is to discuss the various aspects of engine management modification for your Subaru.

Z4 and w6 ecu

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Old Jan 26, 2014 | 05:00 PM
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Swedge
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Default Z4 and w6 ecu

What are these ecu's from?

Just got an sti classic and it came with the z4 ecu fitted but I think it has over boost problems as when you boot it it cuts the fuel I think and jolts the car

The w6 ecu runs fine

The guy re shelled his old car and says the engine is from a p1?

It is a cdb block as I can see the hatchings
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Old Jan 27, 2014 | 02:28 PM
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Impreza WRX 1994-1996
ECU Code Z4 : 12.7psi

Impreza WRX 1993-1994
ECU Code W6, U8 or 2C : 11.47psi

See this post linking to this post.
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