Connermb3kswap Posted July 25 Share Posted July 25 Hi I am currently putting a k20z4 from an fn2 into an mb3 1.5 vtec e “x reg”… it’s hard to find information out there about doing this swap, I believe I am the first to do the z swap with electric throttle etc, my main concern right now is I have heard a lot of different information about the conversion wiring loom, I’ve read online that an eg one is a direct plug and play but then people say it depends on the year… if someone could please let me know if this is the case, also I’m struggling to find out what nsf driveshaft I need it is 32mm hubs I managed to get b series outers onto fn2 shafts but they where too long on the near side “offside fits perfect” has anyone made up shafts and could let me know what ones I need to buy… thanks in advance I hope this forum is still used lol picture for attention 1 Quote Link to comment Share on other sites More sharing options...
dr_broon Posted July 27 Share Posted July 27 Take a look at @btjtaylor thread as he's recently k swapped his mb2 with a k24 and might be able to help. Quote Link to comment Share on other sites More sharing options...
btjtaylor Posted July 27 Share Posted July 27 (edited) I used this conversion harness on my 2001 MB2 so it should work for you. BWE Civic EG 92-95 Integra 94-01 K Series Swap Harness k20 Narrowband EU Version | eBay UK The ECU pinout for my car was somewhat mysterious but I managed to figure it out using wire colours. I did manage to get everything working properly - MIL light works as expected etc. Speedo and RPM works although the MPH is badly out, reading 40mph at 30mph, and so on - i'm going to try a "speedo healer" device at some point. I can't remember 100% as it was over a year ago now I did that part of the swap but here are some notes I had: The main one you need to find is the wire for the fuel pump relay, here is the extract from the service manual Wiring for MIL: Cooling fan: Driveshafts I used OEM EP3 ones and swapped the inners joints side-to-side, knocked off the 36mm CV joints and used blueprint outer CV joints suitable for civic EG6 (32mm). No issues yet... Do NOT buy cheap aftermarket ones, you cant use them as the splines don't accept replacement CV joints. Edited July 27 by btjtaylor additional info 1 Quote Link to comment Share on other sites More sharing options...
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