No start, but it cranks over.

2001 Yukon XL SLT 4x4 5.3L

Problem: No start, cranks over.

History: Had bad fuel (with hydraulic oil)

1. Drained and Cleaned tank
2. Replaced fuel filter (new pump last year) 50PSI at ACC/pre start Almost 60PSI when cranking
3. Replaced all injectors with OEM as well as a coil pack - have spark and fuel at the rails as mentioned above (tried cleaning old injectors and that's when it quit starting)
4. All fuses are good.
5. Replaced all four O2 sensors, two of which has the wrong connector so I used the factory connectors from old ones and looked up how to match the wires. Positive they are correct. (Would this cause no start) It ran before, so I have rules this out, but maybe?
6. Code for TPS keeps showing up, but I replaced that long before this issue and it would start and run before I cleaned injectors...but again, plenty of fuel as and pressure at rails...no debris as far as I know fell into cylinders from injector ports...it tries to start...what am I missing?