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s5 ecu?

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Old 01-06-2009, 10:23 PM
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i have a 87 na rx7 and i just bought a s5 engine and tranny but but it didnt come with a ecu so do i have to use a s5 ecu(if so whats the codes for them) or can i use a s4 ecu???please help
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Old 01-06-2009, 10:53 PM
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No, youre fine with the one in the car. Just use the wiring harness and injectors in your car.
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Old 01-07-2009, 03:11 PM
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even if i use the rtex7 1.8 which ecu should i use???
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