I'm in the process of getting my 87 charger running again. It's been a long process and it will actually run and idle right now. In the process of attempting to get everything setup properly I went to set the distributor timing and make sure it was where it should be. Nothing doing. When I turn on the timing light the timing mark on the flywheel is sometimes gone, sometimes there, bounces around from anywhere from 0-12 whenever it randomly becomes visible. This is with the car warm, coolant sensor plugged in or disconnected as well as when the car was cold with the coolant sensor disconnected or plugged in. Currently the car is throwing codes for the o2 sensor, coolant sensor (Idk if it throws that code when you unplug it?), and Auto shutdown relay. Power loss light is on.
I also don't know if this has any correlation but I took it down the road and the car wouldn't build any boost. It was acting like the charge piping was disconnected but it's all connected and it will idle/run fine. It's idling a bit high but once it warmed up it seemed to even out and idle normally. If I give the gas a quick blip it will rev up fine then seems to drop back down to idle slower than it should but maybe that's just my imagination because I haven't had the car running in a while.
I'm running a roller cam with a square tooth gear but I have an adjustable cam gear on there. Not sure if that has any relevance to the situation or not. I have a lot of work done to the top end of the motor while rebuilding it but I don't think any of it has any relevance to the distributor timing issue.
On a side note, the turbo I put on there since the rebuild was a new to me used unit and it will spin when I rev it up but at idle the turbine isn't spinning at all or barely spinning. Is that normal?