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wiring harness the same?

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Old 06-11-06, 10:26 PM
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ReTripleOG

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wiring harness the same?
i currently have an s4 but i want to do an s5 engine swap this is an NA. can i use the same s4 harness or do i need an s5 because i want to just swap in the s4 for smogging.
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Old 06-11-06, 10:47 PM
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S5 and S4 engine harnesses and engine computers (ECU) are not the same and not compatible.

If you are attempting a swap between series, you need to decide on what ECU you are running and wire accordingly.
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Old 06-11-06, 11:01 PM
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would it be best if i just saved my whole s4 motor for smogging and then completly build my s5 engine for racing and daily
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Old 06-11-06, 11:04 PM
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as Icemark said, you'll need to have an S5 ECU and harness even to do that.
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Old 06-11-06, 11:42 PM
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yeah i know that k thanks
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