thank for the last replies , i managed to reset the light after the last oil change by dissconecting the battery overnight , it hasnt come back on since even though it has stalled once , certainly wont be going to nissan they say its not covered under the sensor recall either what a surprise . did spot the kits on ebay should bw able to get qoute of local garage just wanted to get it double checked for stretching before buying sensors or chain , hanks again