Hi guys, I got a CAS related issue when cranking with fully charged battery...no spark at all. I removed the CAS and turned the CAS shaft by hand and spark and injectors work. Fuel pressure also primes. Checked loom for breaks/intermittent faults and also checked all earths are ok...fitted new CAS loom connector and tried 2 other known working CAS units..same issue. I also checked cam turns when cranking...took the plastic cover off the CAS to see it turns while cranking. Why does CAS not work when on the motor??? What am I doing wrong?