I have been having issues with my 2005 Peugeot expert 2.0 HDI. After numerous times just stalling without warning it now turns over but won't start. I have a OBD2/EOBD scanner so today I tried to connect it to see what codes are on there. For some reason it won't connect to the van. It connects to my other van and numerous cars so I know the scanner is fine. Is there a reason I can't use the scanner on the expert? The scanner is a konnwei kw808.