We have a dawewoo gc25p lift, 3.0 litre engine (NGVI) that wo nt start. Turns over but no spark. Coil, good, pickup sensor in distributor has what appears to be a good waveform. Has code 42. If anyone has the diagnostic info, and schematic, I sure could use it. They wont let me take it out to firing range, so have to fix it. Appreciate any help you could give us. Thank You BILL Curtis