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- Erich_br
- Member Since: 23 Oct 2026
- Location: Milton Keynes
- Posts: 1
2.0 Diesel Ingenium 2018 - Low Fuel Pressure
Hi,
My name is Erich, and I’m the owner of a 2018 2.0L diesel Disco 5. After just a week with the car, I got stranded on a very busy road between Milton Keynes and Buckingham – not a great start…
While driving at around 60 mph, car suddenly lost power and just coasted until it came to a stop. Once stopped, it wouldn’t start again. Luckily, the police arrived very quickly and towed me to a safe place (the RAC, on the other hand, what a disgraceful experience… Recovery took 5h30…)
I carry an OBD reader on the car (I knew about the car history, and I used to do the same with my Giulia Quadrifoglio, great car but a bit temperamental), I got three codes:
- P0087 – Fuel Rail/System Pressure Too Low (Bank 1)
- P006A – MAP – Mass or Volume Air Flow Correlation
- P0342 – Camshaft Position Sensor A Circuit Low (Bank 1 or Single Sensor)
None of these codes were present before.
On the dashboard, the message “Engine System Fault” was displayed.
I cleared the errors and tried to start the car again, but without success. It just kept cranking (and also displayed EB Not Available). The Fuel Rail and Camshaft errors were back. The MAP error did not return
The fuel rail pressure seemed very low, around 10 bar during cranking. I only have a generic OBD reader, so I can’t see the target pressure, just the measured value.
As the recovery took forever, the battery went completely flat. I put it on the charger today, but I think it might be too far gone (it was a new battery though!).
I only just bought the car from a private seller, I dropped him a message. I wasn’t even asking for money or complaining, just trying to understand what’s going on with the car, as I’m sure something dodgy was going on…
I can hear the “buzz” from the low-pressure fuel pump, but the pitch changes during the few seconds it runs with the ignition on. As the car is new to me, I’m not sure if that’s normal or not.
The car is now sitting on my driveway with a dead battery, and the RAC won’t take it to a garage (apparently you only get one shot with them – which is stupid, where exactly was I supposed to take the car at 11:30 pm on a Saturday?).
As I mentioned, the battery was new, and I also noticed that the panel covering the battery wasn’t properly secured, which makes me wonder if someone has been messing around there often…
Part of me thinks the issue could be electrical (three unrelated faults appearing at once?), but on the other hand, the battery was new and the fuel rail pressure is indeed very low while cranking.
Has anyone experienced similar fuel pressure issues, or perhaps an electrical fault that caused something like this? I’d really appreciate hearing your experiences or suggestions on what to check
The car has 79k miles on it, but it’s on its second engine, replaced at 52k back in 2023.
Thanks!
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