2016 b8.5 s4 not starting, knocks/ticks

[Jimmy_s4]

not a mechanic at all so i figured id come here for some insight. this morning i went to go start my car and it just made this continuous knocking/ticking lasting about 30 seconds until it finally stopped. i clicked the remote start once while stepping on the break and there started the ticking. im at work right now and will upload the video later tonight. the car had an issue with starting up about 2 weeks ago, then started up with some struggle later on that day. i also noticed some new oil spots on my driveway floor. 2 weeks ago it did not make the continuous ticking like it did this morning. honestly it freaked me out, especially since it kept making the noise for 30 seconds after attempting to start it, my radio turned on and my dash lit up like a christmas tree. i did scan the car yesterday with my OBDeleven and these were the codes.
P008700 fuel rail/system pressure too low
U140A00 Terminal 30 (says open circuit)
00956 key 2 lower limit not reached
0003 control module faulty
03041 energy management active

im also not sure if it was in my head because of the fuel pressure code but i feel like the car was not at peak performance as far as power/acceleration.

the car is currently APR stage 2 with DP, APR TCU Tune, APR CPS. only been stage 2 DP since august. i am dropping it off to my mechanic monday morning but i figured id see what you guys think. not sure when the battery was changed last but after the last time it didnt start my obd eleven showed the battery at 13.1V

[sacandagaD]

not a mechanic at all so i figured id come here for some insight. this morning i went to go start my car and it just made this continuous knocking/ticking lasting about 30 seconds until it finally stopped. i clicked the remote start once while stepping on the break and there started the ticking. im at work right now and will upload the video later tonight. the car had an issue with starting up about 2 weeks ago, then started up with some struggle later on that day. i also noticed some new oil spots on my driveway floor. 2 weeks ago it did not make the continuous ticking like it did this morning. honestly it freaked me out, especially since it kept making the noise for 30 seconds after attempting to start it, my radio turned on and my dash lit up like a christmas tree. i did scan the car yesterday with my OBDeleven and these were the codes.
P008700 fuel rail/system pressure too low
U140A00 Terminal 30 (says open circuit)
00956 key 2 lower limit not reached
0003 control module faulty
03041 energy management active

im also not sure if it was in my head because of the fuel pressure code but i feel like the car was not at peak performance as far as power/acceleration.

the car is currently APR stage 2 with DP, APR TCU Tune, APR CPS. only been stage 2 DP since august. i am dropping it off to my mechanic monday morning but i figured id see what you guys think. not sure when the battery was changed last but after the last time it didnt start my obd eleven showed the battery at 13.1V

Even though it is only a '16, and not really old for a battery, I'd start there first. "Energy management active" sounds like it is low voltage, and that manifests itself in very odd ways.

[Jimmy_s4]

Even though it is only a '16, and not really old for a battery, I'd start there first. "Energy management active" sounds like it is low voltage, and that manifests itself in very odd ways.

thanks for the input. tonight if it doesn't start ill throw my jump starter on there and see if it turns over.

[GoneQuantum]

Even though it is only a '16, and not really old for a battery, I'd start there first. "Energy management active" sounds like it is low voltage, and that manifests itself in very odd ways.I agree, check the battery. I have a 2016 myself and had to replace the battery in 2019 when I bought the car.

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