Hi there having had my vw sharan cut out on me a few times i changed the dist cap and rotary arm problem still persisted not sure wether coincidence but seemed to be more when it rained? after a while she would start then was misfiring but then would not fire aa said "no spark" so tried a new coil still not working so changed the ht leads and the crank shaft sensor still no starting this prob has been driving me mad has any one had same prob or got any suggestions please?