hi thanks for that . yep popping to ford walsall monday armed with your info and my car . i am assuming the part im after does belong to the orginal engine as my car is july 1990 and this part is number starting 89 .i believe the garage i took it to wud of plugged it in to find our which bit was not working properly . lol i know what you mean about some guys not knowing how to use computer ,they need to remember to put my call on hold as i can hearall their conversation about my part and saying ive given them the wrong part number etc . keep ya posted regards amanda x