Hi everyone,

I have a project at the moment with a GM EFI unit that had some physical modification done to it. Can anyone help point me in the right direction of what this might be traced to? It's mid 80s, and had some physical wiring done to the ECU... I'm not getting ignition spark at the moment, and I hadn't had a chance to try to tackle this 'Clone the ECU so you have a backup' project before getting into this predicament. Car was running fine for about a year, went into storage for a year, and now it's making me pay for it! :)