Hi all, I just got my car serviced at AMD Essex, I have to mention, they provided fantastic customer service! Anyhows... 1 fault code was found during the service: 17748: Camshaft position sensor (g40) / engine speed sensor (g28) p1340 - 001 - incor. correlation readiness: 0110 1101 No engine light on or any other fault lights and car runs fine. However, AMD tech guy did mention it could be that the chain has stretched. thoughts anyone???