Hi I have recently installed and wired a G4 ecu into a nissan silvia with a standard SR20 engine. I am having trouble getting it to start for the first time. I used an SR20 base map from PC link and configured all the necessary inputs and outputs to suit. Â When the engine is cranked it appears to have injector pulse but no spark. Â Both triggers have a good signal to the ecu and engine rpm is around 220 while cranking. Â I can get spark from the coils using the ignition test function. Â Any help would be appreciated.