Hi , I’ve not been on here for a long time, I am looking for some advice on awiring issue on my clio 197 with megane 225 engine conversion, long story short, when the conversion was done the clio had one small wire going to the two pin plug on the alternator, whereas the megane has two , the second wire was not used but now I’m thinking it should have been as the battery light works and the battery charges but has fluctuations between 12.6 and 14.8 v and my tuner won’t map it due to this maybe having issues with fuel pressure, hope that all makes sense to somebody out there , or even a wiring diagram for megane alternator would be good
