rich broom Posted March 9, 2016 Share Posted March 9, 2016 As title. What's the best way to do ecu wiring. Can it be done as stand alone ecu? Basically I have a td5 disco and want to convert my 300 defender. Cheers Quote Link to comment Share on other sites More sharing options...
daslandroverman Posted March 10, 2016 Share Posted March 10, 2016 Simplest solution is get a full vehicle loom from a Td5 defender. Plug and play, with perhaps a little fiddling of ecu settings to make sure everything's happy and it'll run. Quote Link to comment Share on other sites More sharing options...
rich broom Posted March 10, 2016 Author Share Posted March 10, 2016 That would include ecu? So is there no way of doing it with the discovery bits? Quote Link to comment Share on other sites More sharing options...
steve200TDi Posted March 10, 2016 Share Posted March 10, 2016 Well if you had the Discovery wiring harness, then I guess you could retro fit that into your Defender. If it's still in a runnable state in the Discovery then you can thin the harness out and make sure it still runs. I don't know what the main things the ECU needs to see in order for the engine the run. Steve Quote Link to comment Share on other sites More sharing options...
rich broom Posted March 10, 2016 Author Share Posted March 10, 2016 Yeh I have a complete disco running. i was going to break it. But i think a project is going to be a better idea Quote Link to comment Share on other sites More sharing options...
steve200TDi Posted March 10, 2016 Share Posted March 10, 2016 Cool! Well I would unplug the things you don't need or that you're not using for the defender and use the Disco wiring loom. If it comes to it you could just bung all the surplus loom in a bag behind the dash somewhere, but thinning it out would be the better, neater route. I haven't done this personally, but it sound feasible! I look forward to the build thread! Is it auto or manual and what year 10p/15p. Steve Quote Link to comment Share on other sites More sharing options...
rich broom Posted March 10, 2016 Author Share Posted March 10, 2016 Manual 10p 1999.drives nice.but chassis is a bit ripe Quote Link to comment Share on other sites More sharing options...
rich broom Posted March 10, 2016 Author Share Posted March 10, 2016 I have a td5 90 chassis here to build up. So might even convert to the disco axles Quote Link to comment Share on other sites More sharing options...
daslandroverman Posted March 10, 2016 Share Posted March 10, 2016 That would include ecu? So is there no way of doing it with the discovery bits? I've heard of a couple of 'challenge' motors being done with a complete vehicle loom from a Disco, with all the unused bits being stuck together in a waterproof box hidden somewhere in the vehicle to keep the ECU's happy. It's doable, but the amount of extras a D2 has that the defender doesn't means there's a lot to deal with. Whatever you do you'll likely need to spend some time with it connected to a nanocom or similar, so you might as well do it with a simpler wiring setup and save yourself chances of grief later on. Quote Link to comment Share on other sites More sharing options...
dirtyninety Posted March 10, 2016 Share Posted March 10, 2016 Knowing people that have tried to thin down a td5 disco looms... i wouldnt bother, besides defender looms are cheap on ebay! Quote Link to comment Share on other sites More sharing options...
dirtyninety Posted March 10, 2016 Share Posted March 10, 2016 Your other expensive is going to be getting an NNN type ECU and having it de-immobed Quote Link to comment Share on other sites More sharing options...
tacr2man Posted March 10, 2016 Share Posted March 10, 2016 Cant speak for td5 loom , but I thinned out a discovery 300tdi auto with edis loom to run with immob and still fbw throttle in a defender , it was a little time consuming but technically not that difficult . I started by studying a wiring diagram to see just what is needed for the ecu to function , the most part is in the engine loom (sensors) , speed signal is another common , HTSH ps done the same with 3.9 i engine into defender, and also td6 into defender. Quote Link to comment Share on other sites More sharing options...
Anderzander Posted March 11, 2016 Share Posted March 11, 2016 The only extra thing I thought of was the BCU which the discovery uses to run a lot of the electrics. So I would think you either go for the 'tuck it away in a box' as mentioned - and effectively run the disco loom like a piggy back loom - or you have a go at using it to have electric Windows etc ? Quote Link to comment Share on other sites More sharing options...
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