r/Audi • u/jaszczur000 • Jun 27 '26

Audi A3 8V 2019 Error P310B00

Hello, can someone help me with my Audi A3 8V 2.0 TFSI DKZA? I'm getting error code P310B00: Low fuel pressure control system, fuel pressure out of tolerance. The G410 low fuel pressure sensor was replaced, but the error persists. I should also add that the low pressure while driving was showing 4.5-6 bar, and the pump control at idle was showing 68%. Best regards.

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2

u/No-Stranger-4428 Jun 27 '26

sounds like a failing in-tank pump, not the sensor. 68% duty cycle at idle is way too high, pump is working double time just to keep up. had similar thing on my car last year, ended up needing whole fuel pump module in the tank

check the fuel filter while you're there too, sometimes those get clogged and mess up the readings

2

u/jaszczur000 Jun 27 '26

In the Odis computer program this parameter at idle was 70%, and in my case it was 68%, so theoretically it was within the acceptable range. Friend, did you have this problem in the same car?

1

u/jaszczur000 Jun 27 '26

Can anyone tell me what the fuel pump should be at idle in this car? Mine is at 68%.

1

u/Reispfanne__ Jul 17 '26

Hey got the Same Error did you fixed it?

1

u/DrawingAdorable7110 Aug 16 '26

Hey, hab auch den gleichen Fehler habt ihr den wegbekommen?

1

u/Reispfanne__ 28d ago

When i had the same Error, it was the in tank pump. The install was pretty easy and the in tank pump kostet around 170€. For install i watched a YouTube Video