2011 Cadillac SRX 3.0 DI Engine

Hello everyone! I was hoping to get some help for a system I am not very familiar with. As the title says, it is a Cady with the 3.0 DI engine. It is from a used car lot and has had some work done in house by them before coming to us. They had a noise int he front cover which they decided was a chain slap problem. They replaced ALL of the timing components from the dealer. They also changed the o2 sensors on the vehicle. Now I have been led astray by this place in the past so i take nothing at face value. I scanned it after they told me the o2 codes are the ones they cannot get rid of. Only codes we have int his thing are rich on both banks. Fuel trims are -40% on long term and -15% on short term. Now, I have done an injector balance test through the scan tool, but I am not sure how to decipher the information. In the shop manual they want you to do some math leaving out the "cylinder that you think is misfiring", but this has nothing counting on misfire counter. The thing runs like garbage and has no power. It is obviously pulling fuel due toa rich condition. I did check the fuel pressure through the scan data and low side is around 60psi at idle while the high side was around 290- 370psi commanded and desired matched at all times. When I shut the thing off I noticed the in tank pump pressure dropped to 45psi and was down to about 35 within a minute or so. Is this telling me that I have a leak? High side pressure seemed to hold. I am just not familiar enough to make a call here. If I have a leaking injector would I not see this high side drop? If any of you have an idea here on what I should be checking for, I would appreciate the input. I was thinking they did something wrong installing the timing components, but then I should have a code for that. I don't...Need some direction on this pig of a motor. Thanks for any thoughts.

Can you post the MAF g/s readings.

4.3 g/s @idle

Is this a Flex-Fuel?

Don't know if this engine follows the standard 1g/s per l at idle.
If so it reads higher than normal which would cause PCM to subtract fuel.

II was thinking that as well, but this thing is at -40% on both banks. I tried disconnecting the MAF to see if it goes into a limp mode and corrects, which is does not. Not sure if that test is reliable however. This is a flex fuel and alcohol content is 0.
I am trying to find a known good cam crank waveform, but have found only one and not sure it is correct or not. I noticed that if I hook up a fuel pressure gauge to the port, it will hold at about 60psi and then drop to about 45 in a minute or so. not sure if this is a problem. Wish there was some way to verify the high pressure side of things is in order. These engines suck.

what does the vvt data read? such as cam variation degrees? should read 0.

What are your Oxygen sensors doing? Can you induce a lean condition?

Well can't upload the files. says it exceeds the maximum size...I give up.

So after sending the files to Brandon Steckler, he was able to prove wea re indeed 10 degrees off on timing. Can never have enough knowledge or friends in this business. I appreciate the help from you guys as well and wanted to share what we came up with here. Now, I am unsure if this engine has another issue or not. They were trying to fix this vehicle by putting the chain on it. Now, they may have simply caused another problem on top of the original one. As for now we are done with it. He will have his tech attempt to set the timing chain up properly and see where it goes from there. If there is still a problem after, I am certain it will be back.