Unclear while running, you do get the normal startup CEL if it drops low enough to reboot. Your Cam Sensor fault doesn't sound like a power issue but we haven't made much progress so far. I'd really like to see what the ECU is seeing when your trying to start and it won't.

Is there some reason you don't want to share a log file? There might not be anything sigificant in it or it might answer what's going on.

Can you clear the fault and get it to start right after?

So I had it on the trickle charger and it started BEFORE clearing the CEL. Cleared the CEL. Started again a few minutes later. It sat for 30min and then started right up. I have no issue getting a log, next time it’s acting up I’ll log it. I just don’t normally have my pc in the car.

You are lucky that you can still get a brand-new cam position sensor for '98 GST and they only cost about $40 for a good brand like NTK or Wells, from Rock Auto.

I vaguely remember someone in the past having had oil leaking into the sensor and finding debris on the end of it.
It shouldn't be too much bother to pull it and check while inspecting the connector and wires which the Google AI suggests may be an issue.

I gave up trying to get it off cause the fuel line is in the way and I didn’t wanna pull that off. Now that the cars sitting and fuel pressure has dropped I may try again and see if the sensor is dirty. The connector definitely isn’t.

Popped the sensor out. Covered in oil. Guess I need to pull the valve cover and check the seal on the inside? Not sure best course of action.

I thought I havd a hardcopy FSM for the 98/99 cars but I don't find it. The PDF scans only show an o-ring seal between the sensor and the cam sensor housing. The seal to the head is shown as a ring of RTV on the cam sensor housing so oil can weep out of the rear exhaust cam cap into the housing. Hopefully one of the 2G wisemen can comment on how much oil is normal.

Thanks Steve, I didn’t see any sort of seal under the valve cover but the rtv seal on the outside is accurate. There is no oil externally so I’d be curious how much is normal as well. FWIW I cleaned the sensor and inside the housing and even though the CEL hasn’t cleared itself yet, it’s started right up three or four times since cleaning it. Hopefully that was it and can keep that banked if it happens again. Thanks for shouting that Google result!

Can anyone confirm if oil inside the CAS housing is normal?