3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
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Should I get a Power FC or Haltech w/ these mods?

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Old Aug 11, 2020 | 05:17 PM
  #26  
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From: South Orange County, CA
Originally Posted by j9fd3s
i just passed emissions with the Re-A ECU, in California. the HC and CO came up a tad, but i still had a comfortable margin.
Very interesting! Was that a loaded-mode test?

Are you running CA 91-octane pump fuel with this ECU? Can you detail the specs of the RE-A ECU you are running (boost, any custom maps, any "3K" hesitation, etc.)? I have read that there is a single part number for the JDM MT 8-bit, but that there were a few iterations, don't know if this is true or not.
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Old Aug 11, 2020 | 06:08 PM
  #27  
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Originally Posted by j9fd3s
i just passed emissions with the Re-A ECU, in California. the HC and CO came up a tad, but i still had a comfortable margin.
aren't 25yo cars emission exempt??
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Old Aug 11, 2020 | 06:14 PM
  #28  
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Originally Posted by neit_jnf
aren't 25yo cars emission exempt??
Outside of CA yea. CA is only exempt before 1975.
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Old Aug 12, 2020 | 09:14 AM
  #29  
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From: https://www2.mazda.com/en/100th/
Originally Posted by neit_jnf
aren't 25yo cars emission exempt??
no! it seriously sucks, the stupid car passes every time, everything passes.
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Old Aug 12, 2020 | 09:22 AM
  #30  
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From: https://www2.mazda.com/en/100th/
Originally Posted by jza80
Very interesting! Was that a loaded-mode test?

Are you running CA 91-octane pump fuel with this ECU? Can you detail the specs of the RE-A ECU you are running (boost, any custom maps, any "3K" hesitation, etc.)? I have read that there is a single part number for the JDM MT 8-bit, but that there were a few iterations, don't know if this is true or not.
California does a test at 15mph and 25mph on a dyno, it is loaded, but its not like the one in Colorado where they run the thing up to 60mph!

i'm on 91 pump, ECU is the A type, which is for stock engine, stock turbos, stock main cat. mine is .9/.7 for boost. the Type B is for cars with no main cat, and Type C was a custom tune, so you need to watch what you buy.

the JDM ecus were all N3A7, and it does go A,B,C but once you chip it i'm not sure it matters.

theoretically the chip they add is flashable, so if one was to learn how to do it, you could actually tune the thing yourself.
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