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I tried searching and digging through some old threads and couldnt come up with a answear. So any help would be appreciated.

So I currently have a blown RB25det series 2 in my car and just purchased a series 1, so my issue is how do I convert the Series 1 to a 2?

Do I just use my series 2 coils on the series 1 as my car is wired for the series 2? this seems like the most viable solution.

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hello

the ecu is the same for series 1 and 2 so the differences will be on the physical side

ie series 1 tps vs series 2 has different plug, but all work the same according to ECU

the series 1 and series 2 are same, but series 1 has an extra ground wire

likewise, minor differences, they work the same, just phyiscal difference

Is it just the CAS thats different on the very late S2 engines or are there other differences (internal/external). Would be interested to know considering its very close to the first of the NEO build.

the 1998 R33 builds have the ER34 RB25 style CAS

it works the same, runs the same, voltage the same

just looks different - ie its the ER34 CAS

Yeah i have a Dec 97 and its got the plastic cas,just wondering whether it shared anything else with the 34 or is that it.

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