Oil pressure warning light and drivetrain malfunction lights turned on, engine lost power and will not start?

A friend of mine was driving his car listed above, he had the oil pressure light come on, it slowed down lost power and the drivetrain malfunction message also appeared, so he pulled over. Added a quart of oil in case the reason was no oil, and car would not start. He towed it to me. It turns over, I removed the oil cap and I see the chain moving, also crank shaft moving. I can't measure the oil level because these have no dip stick, not until the car is on and warm. Tried starter fluid, not sure if it works on these inside the throttle body. Codes were underboss and just things that have nothing to do with starting at all. Sometimes it would want to start I believe for milli second. Didn't have any fuel related codes at all.