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Will A S4 T2 Engine Work With S5 T2 Ecu And Harness?

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Old 08-05-03, 11:41 PM
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Will A S4 T2 Engine Work With S5 T2 Ecu And Harness?
Im thinking of buying a s5 t2 and switching my engine out of my s4 t2 but i would rather not switch ecu's and harness thank you for your help
Last edited by PISTONS; 08-05-03 at 11:43 PM.
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Old 08-05-03, 11:45 PM
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Old 08-06-03, 12:00 AM
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Old 08-06-03, 09:49 AM
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So if i change everthing over engine harness and ecu to the s5 will it work with rest of the car?
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Old 08-06-03, 09:53 AM
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Just don't touch the driver's side harness.
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Old 08-06-03, 04:54 PM
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WRONG!!

The S5 ECU wont run the S4 dash.

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Old 08-07-03, 06:37 PM
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Yep, J-Rat is right - the crossover plug across the dashboard is 1) wrong type of plug, and 2) wiring is totally different.

A lot of the electrical plugs (water temp, fuel injectors) are totally different and won't work on a Zenki engine.



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