eddielee

Hi everybody. I put a new motor in my 99slk 230 and it turns over but is misfiring and wont start I ckecked the spark at the number one cylinder and its not normal it sparks like three times in one cycle (all four strokes) I think it might be the ECU because my scanner cant connect with it. Also I checked the reference voltage on the cps and it's 12 volts isn't it supposed to be 5 volts Im pretty sure all the sensors use 5 volts so now I'm trying to figure out how to test the ECU I'm also looking for a diagram of the network and a pinout for the ECU Also Im looking to buy a real good diagnostic system any suggestions?Any advice would be great Thanks