I have a 76 280z with a 280zxt swap. The car refuses to cold start unless i put the charger on it and put 125amps to it. The battery is brand new and reads fully charged on the charger. Why is this. The car will start fine once warm. Also sometimes the car will light the cylinders at the wrong time and send all 6 cylinders out through the emergency pop valve. Yesterday my CAS went bad and i have a new one coming. Could a bad CAS cause this weird fire and starting issue? Could the CHTS cause an issue when cold? Once started the car idles great hot or cold but wouldn't rev past 3000rpm
What i have replaced or checked:
Fuel pressure was 36 at idle
cap
rotor
coil
ignitor
thermotime
chts-have a resistance number that is a little off
fuses
have full voltage at ignitor and coil
have 12v at CAS
continuity from ecu to all sensors
Airflow meter doesnt have any dead spots in it that i could find, although the resistance numbers aren't linear