I have a 2012 all4 that has decide that it no longer wants to start... about 2 weeks ago it was driving down the road and just died... hit the start button and it restarted... has done it about 3 more times... then last week drove fine to town but when came to restart it just cranks... after about 30 min it started... that brings me to the now... ran fine the night before then went to start it in the morning and just cranking no start...checked crank sensor have rpm so assuming good... has power to coils and tired another set of coils no luck... coils work on other vehicle... car smells like it is flooding itself... looking for any ideas or more troubleshooting steps I have missed... in tank pump in good at 75 psi and hpfp showing 800 psi on cranking... looking for a cranking pressure to see if this may be the issue...

 

No CEL or any codes scanned?

 

No... there are no codes... gas mileage has been going down over the last two months... down about 4 mpg driving style the same...

 

My money is on HPFP.

 

It very well may be the HPFP if you can smell fuel

 

I was just making sure I hadnt missed something else before I dropped the 750 on a pump. At 100,000 miles I guess the pump will go sometime.

 

800 psi on cranking. What is the specification supposed to be?

 

I'm not sure... that is one of the things I am trying to find out more information about.

 

I went through a similar issue after having bought mine used. Crank and no start. I had some codes for the body/chassis DME though. Turned out to be an intermittent relay R1 in the fuse box and I found by LUCK really (while checking the basics). Caused me a **** ton of headaches trying to figure out why all of a sudden and intermittently I had this issue. Even took it to the dealer and they printed me pages of faults with no solution other than to change a MAP sensor (that there was a code for but just a result of this root cause) for $500 lol. I paid $170 for their "analysis"... Figured this is why people sell and get away from these vehicles. Just replaced the battery yesterday and had a friend register it with his computer luckily for me. I'm surprised we can even take these things to the gas station and fill up ourselves lol.

 

I did read through your post and checked it out couple days ago. I've been checking out all the posts I have read and checking everything out so far, no luck...