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420A How to tell if a 97 RS ECM is for Automatic or Manual?

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There should be a number on your ECU. But if you can't find it or don't have one these are the part numbers for 97/98 420a ECU's

5293 014AC - 97/98 Non-Turbo (420a) Automatic Transmission
5293 013AC - 97/98 Non-Turbo (420a) Manual Transmission

Since you are from South America the ECU's may differ from North American ones so best bet would be look for the number on yours. The North American cars would have possibly had more emissions so you may loose power or end up with engine codes if that was the case. Someone who knows more may chime in
 
There should be a number on your ECU. But if you can't find it or don't have one these are the part numbers for 97/98 420a ECU's

5293 014AC - 97/98 Non-Turbo (420a) Automatic Transmission
5293 013AC - 97/98 Non-Turbo (420a) Manual Transmission

Since you are from South America the ECU's may differ from North American ones so best bet would be look for the number on yours. The North American cars would have possibly had more emissions so you may loose power or end up with engine codes if that was the case. Someone who knows more may chime in

You're right I don't have one, my car is automátic and atm is working with a neon one but it has issues. That's why I'm trying to get help, I have no idea of how the original was.

I think my car came from NA cause the gauge is in Miles and not KM
 
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