2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

S4 Tii Ecu

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Old Apr 14, 2004 | 12:12 AM
  #1  
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S4 Tii Ecu

I'm wondering if you could swap an n/a ecu into a tII of the same year (88).
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Old Apr 14, 2004 | 12:19 AM
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From what I have been reading that answer is a : NO

The reason is the N/A ECU (Except some of the convertable ecu's) was never made to handle any boost/pressure.

The ECU can't figure out to dump more fuel as the turbo needs it becuase the pressure is building and no longer in vac when you are boosting....

Something close to that.
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Old Apr 14, 2004 | 12:29 AM
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sweet thx man, I figured something along the lines of the fuel injectors would dump different amounts of fuel between n/a and tII but I figured I would through it out there
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