Wise words juliuscd . The amount of peeps that come on forums . And say those immortal words " my cars doing this and that and the EML is on !!! Do you know what it is ? " well we are not all mystic meg , so if they purchase a code reader and know how to use it , it saves a huge amount of guessing , and with money being tight , it saves a trip to a garage to read the codes which can start at half an hours labour .