Hello, Sorry to repeat the same threat as others but im having a similar issue and unable to resolve.
Im running an Atom ECU - new install from scratch on an old Renault 5. I've double checked the wiring and I'm happy. I get a good strong spark on ignition test. Injectors click nicely on injector test. I get 250rpm when cranking but no spark (tested with plug out and earthed to head.
I read a few threads on here and tried a few things but no luck. I'm only running the crank sensor, no