Thanks for the replies.......the car has full service history and had one less than 1000 miles ago . The crank sensor came from GSF. Anyway I have today been playing and think I have solved it. Checked the fuses and relays but no faults. Took off the breather pipes to check for blockages or cracks etc but nothing. Took the MAF off to check that out as when I unpluggedit the car would cut out. Found that full of crap and one of the little wires inside loose so repaired that and cleaned out. Refitted that and the car will now run lumpy again and I can accelerate. Unplugged the MAF and its no better and no worse. Checked for fault codes again and get the idle control valve still. Takes off the HT lead cover to find the connector not on properly. Plugged it in and the car cuts out. Unplugs and car runs lumpy so am now thinking the idle control valve is faulty and the MAF needed cleaning. So if anyone has an idle control valve on an OBD1 vr they are breaking then let me know. Cheers