I have a 77 280z with stock l28 & fuel injection.
It wouldn't start so we replaced the battery and it started and ran well for a few weeks.
I replaced the battery again but it didn't work this time.
The starter won't turn over at all.
We have checked all the connections on the battery and all relays and solenoids with no loose or broken connections.
I'm thinking it could be the switch, a relay, or fuse or maybe the solenoid or starter but not sure where to start.
Any ideas would be appreciated.