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Old 11-10-08, 08:21 PM
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ECU Question

I've searched the RX7Club forums, but to no avail. I'm sure it's an easy answer. I purchased a 1988 JDM B13 online to swap into my 1987 GXL. It came with everything except the ECU. My question is, with the Japanese harness, can I use a USDM ECU or does it have to be JDM? And based upon the answer, which N3xx should I be using for best results?
Old 11-11-08, 10:55 AM
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Not sure about the harness, but here is the link to ECU's.
http://fc3spro.com/TECH/FAQ/ecutype.html
Old 11-11-08, 11:46 AM
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ECU's.
http://fc3spro.com/TECH/FAQ/ecutype.html
Old 11-11-08, 01:37 PM
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I've checked the FAQ at FC3S Pro. It claims that the only ECU that'll work is N344, which has to be the rarest ECU in the world because I can't find it anywhere. That's why I'm posting here to see if there is any alternative.
Old 11-11-08, 02:52 PM
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Use a N332/333 and keep your non-turbo EM harness. A JDM harness is too short to use on a LHD car, and changing a couple wires on the NA harness is far easier than adapting in a turbo harness.

All the info you need is in the 2nd Gen Tech section. I'd do a lot of searching before you start taking things apart. There are a ton of threads on turbo swaps.
Old 11-11-08, 08:14 PM
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According to the ECU FAQ, the only ECU that will work is N344, which I cannot find one of anywhere. That's why I'm posting here to try to locate an alternative. Is there any other ECU I can use?
Old 11-13-08, 09:01 PM
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Originally Posted by RotaryRocket88
Use a N332/333 and keep your non-turbo EM harness. A JDM harness is too short to use on a LHD car, and changing a couple wires on the NA harness is far easier than adapting in a turbo harness.

All the info you need is in the 2nd Gen Tech section. I'd do a lot of searching before you start taking things apart. There are a ton of threads on turbo swaps.
Disregard my last post. Forgot about the admin approval timeframe. OK, so I'm going to just get the N333 ECU and change the 2 wires on the harness so I don't have to worry about trying to locate a JDM ECU. Thanks for the help!
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