thanks again for your help evocarlos. i cant test the module as I have no help at the min, ive just tested the coil as the video shows. Im getting an unstable reading on both the left and right pins, the reading range from 0.1 ohms to 0.9 ohms n constantly going up n down. Im sure ive held the probes on properly. Is this a possible reading of knackered coil? And can just one spark plug not ignite?