Looking for help on my 2015 Jag XF 3.0 AWD.. I have replaced all injectors and plugs because running very rich strong smell fuel in oil as the Jaguar dealer told me i had bad injectors.. well still getting fuel in my oil..

 

If it's a diesel, it's probably failed DPF regens. Nothing to do with the injectors if so.

 

It's not a diesel.. The 3.0 XF gas supercharged

 

It's not a diesel.. The 3.0 XF gas supercharged
I have read that it might be the high pressure injection pump but the fuel injectors should regulate the fuel, I'm not sure.. I hate to keep throwing parts out at...

 

Keith, I had a similar problem with my 5.0L engine. Now, mind ended up being the fuel injectors, but I also had to rule out the fuel system pressure sensor and the high pressure fuel pumps. Keep in mind that you can't connect just any gauge to the fuel line as it can reach upwards of 3,000+ psig. Hopefully you are getting an error code and it is talking about a failed fuel rail indication. That would point to the sensor more than likely. Not a hard part to replace and it is fairly cheap. ($80). Now, the fuel pumps were a bugger. I did them in my driveway, but I got both pumps for $400 total and took about 3 hours to do. Not a lot of room.

Keep in mind that the fuel injectors are programmed to the specific spot in the engine. So, if you replaced the fuel injectors yourself, there is a number that has to be programmed into the ECU to make sure the fuel injectors admit the correct about of fuel. If you did not do this programming, you could be getting a rich condition because of that. Besides, the fuel injectors do not control the pressure, that is what the fuel pressure sensor does and it causes the high pressure fuel pump to only engage for a certain amount of time to maintain the system pressure at a preset level (ie, a set pressure above what the cylinder pressure is).