Grim Reaper Posted March 13, 2003 Share Posted March 13, 2003 I have some questions on the wiring necessary for the Emerald ECU... 1) If running with Throttle bodies,do I need the wiring for the IACV? or can I take them out of the loom? (pins 2,3,22 & 27) 2) I have a wire connected to pin 6 on the ECU (Blue/Grey)which goes to the Loom connector,and a wire on pin 10 (White/Yellow) which goes to a 2 pin connector..the pin out details in the Emerald book do not say what that is for.The 2 pin connector also has a 12v feed on it. 3) Pin 12 on the ECU should be for a Tacho output signal,but I have no wire from pin 12 on the engine loom? 4) The Emerald ECU is supposed to have 2 outputs able to control relays to use when oil and water temperature thresholds are reached...which pins do these drivers appear on? 5) What the **** is a purge valve?? (pin 21) can I get rid of these wires too? 6) Since I am not using the Rover immobiliser can I remove pin 13 wiring as well? I have added pin 1 for second coil and pin 19 for shift light. With all these unneccesary wires gone and the crimped and taped connections soldered and covered properly,the loom should be quite a bit more streamlined than it was. Any idea where to get more blanking plugs for the ECU connector from? I would use silicone but that is a little too permanent for my liking. Thanking you in advance... Added some colours for the extra wires.. Edited by - Grim Reaper on 13 Mar 2003 16:47:36 Link to comment Share on other sites More sharing options...
V7 SLR Posted March 13, 2003 Share Posted March 13, 2003 Quite a lot of specific questions... I don't have my Emerald manual with me. If you're local to Worcs then you're welcome to pop round and I can explain what I know about this as I've already rationalised my wiring loom quite extensively. Otherwise give me a call this evening (after 7) and I should be home. I'll go and get my Emerald manual and we can have a discussion about it. My phone number's in the AO's page. Nig. Worcs L7 club joint AO.//Membership No. 4379//Azure Blue SLR No. 0077//Se7ens List Tours Link to comment Share on other sites More sharing options...
Grim Reaper Posted March 13, 2003 Author Share Posted March 13, 2003 Nig, Sorry,not local to Worcs,North Yorkshire would have been closer.. If I can,I'll give you a call tonight.(I'm on call so have no idea where I may be at any time) My paper copy of the manual that came with the ECU is at a Rolling road owners premises (he may be giving me free time on the rollers so thought he should have some idea of what he's dealing with) so I am using the online manual doc in the interim. Does anybody know what a purge valve is?? Link to comment Share on other sites More sharing options...
Lawrence_Z Posted March 13, 2003 Share Posted March 13, 2003 My version of the pin outs is here most of your answers are there Lawrence Link to comment Share on other sites More sharing options...
Grim Reaper Posted March 14, 2003 Author Share Posted March 14, 2003 Thanks folks,looks like Emerald should have another pin-out list for the more recent models on their website... I have now removed all the unneccessary wires,just need to rewrap the loom and fill those holes with something. Quite a lot of unused wires in there,some just go a foot into the wrapping and stop One of the wires (the fuel pump feed) went halfway up the loom then was jointed in a crimp,returned past where it came in and off to another connector, really bizarre! I think that by taking these out it will be easier to fault come the day. I'll have to draw a concise wiring diagram and get it laminated so I can leave it in the car somewhere just in case I need it by the side of the road one day. Link to comment Share on other sites More sharing options...
V7 SLR Posted March 14, 2003 Share Posted March 14, 2003 And the scariest thing is... answering the telephone to someone who says "Hi Nigel, it's the Grim Reaper". Hmm, took me a second or two to compose myself... Worcs L7 club joint AO.//Membership No. 4379//Azure Blue SLR No. 0077//Se7ens List Tours Link to comment Share on other sites More sharing options...
CHRIS CLARK Posted March 14, 2003 Share Posted March 14, 2003 G.R. Isn't the purge valve used on the charcoal cannister for emmissions etc ( and I ain't got one so can't be specific !)? Link to comment Share on other sites More sharing options...
Mick Day Posted March 14, 2003 Share Posted March 14, 2003 Spot on Chris. It sure ain't no laxative though! Mick Link to comment Share on other sites More sharing options...
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