Sounds exactly like what mine did, the wiring harness connector near the steering rack and pinion was loose (broken clip) , caused all kinds of gremlins till we figured it out
Sounds like either a ground issue like you said or a bad body control module. Just replaced the bcm on my dads z06, showing all of the same warnings for suspension, fuel system etc. after replacing bcm it all went away. There are some ways to check the resistance on the bcm with a multimeter if you look into some of the old forums.
Sounds exactly like what mine did, the wiring harness connector near the steering rack and pinion was loose (broken clip) , caused all kinds of gremlins till we figured it out
Sounds like either a ground issue like you said or a bad body control module. Just replaced the bcm on my dads z06, showing all of the same warnings for suspension, fuel system etc. after replacing bcm it all went away. There are some ways to check the resistance on the bcm with a multimeter if you look into some of the old forums.
Awesome man thanks for that info! I will look into that and see what I find
Did you figure it out,having same issue