2. test fuel pressure with a pressure gauge. You either hook up to a fitting on the rail or put in a T and coonect up.
3. After running the car for a couple min check the temp of the exhaust at each port. Lower temp that the others would indicate a lack of combustion. This is just a start to diagnosing this as you may be getting too much fuel.
4. I think the engine temp sensor is interchangeable with one of the other sensors(can someone confirm?) you could try swapping the connectors and see if that helps.
5. check it again and check anything else that may leak.
7. it runs without the AFM so that could be the problem. I think bentley has the test info.