Here is the diagram for the P0191. The P0016 is related and is actually mentioned in the description.
Basically this is finding to great of difference between the fuel pressure sensors.
The testing is attached so we need to run through this and see what turns up.
Let me know if you have questions and what you find. Thanks
Images (Click to enlarge)
Monday, March 30th, 2020 AT 8:44 PM