Mike Brownlie Posted November 23, 2008 Share Posted November 23, 2008 Hi guys, im helping another member with a 3.9efi conversion and im looking for some assistance with the wiring. the engine and all ancilarys work as we removed them from a running 1989 rangerover. so far i have managed to get the engine turning over and main relays click. checked for spark from a spark plug but none. so, 1. can anyone advise me on what the connections and wire colours are on the white plug on the rangerover connector ? 2. has anyone got the pin outs on the 200tdi engine plug (rectangle one) 3. does the fuel system need to be presurised to get a spark ? 4. the coil +12v can be taken from the aux on the altenator ?? 5. the interference suppressor is it important ? any other hints tips appreciated. oh, im not going carb or megasquirt on this one ! cheers mike Quote Link to comment Share on other sites More sharing options...
Happyoldgit Posted November 24, 2008 Share Posted November 24, 2008 Moved from the defender forum for wider coverage. Quote Link to comment Share on other sites More sharing options...
western Posted November 24, 2008 Share Posted November 24, 2008 has anyone got the pin outs on the 200tdi engine plug this diagram should help identify the wire allocation, they match the vehicle part of the multiplugs. Quote Link to comment Share on other sites More sharing options...
Hybrid_From_Hell Posted November 24, 2008 Share Posted November 24, 2008 Mike, CAn you post up the RR V8 wire colours you have, I can sort of almost rememebr but can't think what all the colours are, some are joined together in the plug mention those to If I can't remember BBC or Mr Fridge will know From memory and I may be getting me flapper and me Hotwire mixed up White purple fuel pump - 12v feed ignition on Thick Brown or thicj white and something - main power feed White = 12v ignition on White and red thin = cranking ? and then me mind goes all blank like Rather than to risk my memory hopefully someone will cross check agree the above, rather than let the famous lucas harness smoke escape Nige PS MS It Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted November 24, 2008 Share Posted November 24, 2008 You mean like this? And what Nige said Quote Link to comment Share on other sites More sharing options...
steve_d Posted November 24, 2008 Share Posted November 24, 2008 I believe the wiring for the hotwire efi is in the tech info section which will save me trying to read out 40 wire colours. I believe the ignition will be shown on the main wiring but coil negative goes via a resistor into pin 39 on the ecu The +12v should be ignition switched live (white) and go to both the coil +ve and the ignition amp and the capacitor. ignition amp (white/black) goes to -ve on coil. steve ETA everyone else jumped in while I was looking in the book. Would add though that the wiring changes again from 1990. Quote Link to comment Share on other sites More sharing options...
hammoj28 Posted January 31, 2009 Share Posted January 31, 2009 Thanks for the replies guys. Its me he's helping. I have that very same diagram, but i was wondering. Is it the same as mine because mine dont have Lambda sensors? Also having trouble getting a spark at the moment. Iv mucked around with the coil wiirng and i think iv got it right. What else should i look at? Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted January 31, 2009 Share Posted January 31, 2009 You need sparks before the ECU will even think about firing the injectors, so you need to sort that first and check the feed (white/black) from coil -ve to the ECU is connected. If you don't have lambda sensors, just ignore them on the diagram, everything else should be the same. Quote Link to comment Share on other sites More sharing options...
hammoj28 Posted January 31, 2009 Share Posted January 31, 2009 Ah, ok. Cool. I shall get that done first. And iv noticed there are two purple and white wires for the fuel pump relay. i take it the white with solid purple line is power and the white with dashed purple line is the power. Quote Link to comment Share on other sites More sharing options...
hammoj28 Posted February 1, 2009 Share Posted February 1, 2009 coil -ve to the ECU is connected now, just not got a spark for some reason. Earthed the coil, earthed the engine. Erm...... Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted February 1, 2009 Share Posted February 1, 2009 You don't earth the coil, the ignition amp earths the -ve side to make fire and the ignition live feeds 12v to the +ve side. Quote Link to comment Share on other sites More sharing options...
max-ie Posted February 1, 2009 Share Posted February 1, 2009 Have you put the in line resistor in negative side of the coil, black/white wire that goes to a relay. I didn't get aspark without it. Max Quote Link to comment Share on other sites More sharing options...
max-ie Posted February 1, 2009 Share Posted February 1, 2009 Also,try a new set of NGK plugs, EFI engines dont like dirty or wet spark plugs. I has the same problem after the engine was fitted, three days of messing around. Quote Link to comment Share on other sites More sharing options...
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