Check engine light came on for my 2015 XF 3.0 Super charged. Checked OBD codes with and got P008A. Car stalled once. Restarted fine, drove fine, no other symptoms. Any ideas on where to start troubleshooting?

 

P008A Low Pressure Fuel System Pressure - Too Low

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Clogged fuel filter, fuel pump, just two of several possibilities.
Enjoy

 

After a pile of reading across Jaguar forums and other automotive forums, I decided it was possible the fuel cap was not seated correctly and this combined with very low fuel level may have caused the low pressure fuel system sensor condition. First, I reset the fuel cap, ensuring it was adequately tightened. Then I started her up - check engine light remained on. However, I shut her down and restarted her - check engine light went off. Shut her down again, restarted - no check engine light. Drove to the local gas station, filled up with premium ($4 / gallon - ouch!) and drove home. No check engine light and no stalls. Have driven her all day - condition seems to have been remedied.

My theory - combination of incorrectly seated fuel tank cap and low fuel allowed for significantly less vacuum in the tank - combined with very low fuel which allows for sloshing and foaming etc.. the low pressure fuel system was in fact detecting fuel pressure out of tolerance. No good explanation on the stall other than it seems reasonable that if low pressure fuel system was below tolerance, there was insufficient pressure to get a correct amount of fuel to the engine.

For now, we'll drive her locally only to see if any indicators of the problem persist - but for today, it seems the issue was the gas cap and the low fuel level.

 

A long over due follow up to this. The code did eventually come back. Took it to the local mechanic I trust. Long diagnostic process ultimately resulted in replacing the low pressure fuel pump. This fixed the problem and it has not returned... its been 8 months, all good so far.

 

Good to hear!