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Thread: FIXED: Help on S3 error - Fuel Pressure Regulator Valve (N276)

  1. #11
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    Ok for those following/helping..

    How do you actually remove the G247 sensor? Do you have to take off the inlet manifold??

    It lives under the intake.... would love to know if anybody knows how to do this before I give up and take to the mechanic..

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  2. #12
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    G247 is high pressure fuel sensor from memory. No idea how to remove on S3 but it will be connected to high pressure fuel rail hence why it is located under intake manifold and connected to injectors.

    You might be able to remove electrical connector and undo with spanner otherwise it’s intake manifold off.

    Why do you think there is an issue with G247?


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  3. #13
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    I was actually referring to the black connector on high pressure fuel pump not the plug that your showing.


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  4. #14
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    The item you have pointed at is the fuel pressure regulator valve and yes it’s a pig to change, ask me how I know…

    https://vtechaus.com.au/products/fue...-valve-165-bar

    I’ll send a photo of the sensor tomorrow which is easy to change, it’s on the fuel pump…

    I’m not convinced your method of testing is correct though mate however the sensor is not expensive if you want to try it anyway…

    https://www.ebay.com.au/itm/Audi-VW-...154756-20017-0

  5. #15
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    it’s the part with the yellow arrow mate…

    https://cdn4.pelicanparts.com/techarticles/Volkswagen_Golf_GTI_Mk_V/35-FUEL-Low_Fuel_Pressure_Sensor_Replacement/images_small/pic08.jpg


    it might be a good idea if you take a couple of photos of your engine bay around the fuel pump area and post them here…

  6. #16
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    I'll go through my testing again and come back to you.

    The fuel pump has two connectors. The one on the 'top' of the pump, came with the new pump, so that should be fine (but the 'connector' could be broken)

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    The one to the 'side' of the pump, had to be taken off the old pump and put on the new one. It's got a 'broken' connector, but seems to make good contact.

    Below is testing from memory. I'll do it again a bit later today (to early in the morning to start making noise in my house!)

    Test 1
    Clear errors in VCDS
    Unplug connector at TOP of fuel pump
    Try to start car
    Check errors in VCDS (came up with two errors)


    Test 2
    Clear errors in VCDS
    Unplug connector at SIDE of fuel pump
    Try to start car
    Check errors in VCDS (came up with one error)

    Now that my mind is thinking about it, I've got G247 stuck in my head which is the fuel pressure sensor, and I need to double check now if that throws a N276 error.

    This post at least has a breakdown of the parts..
    Fuel pressure problem with S3, please help!! | Audi-Sport.net

  7. #17
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    ok, so here is this morning testing.

    Logic. Clear errors in VCDS. Remove one connector. Try to start car (it will start, cough, then I turn it off). Check VCDS for errors.
    TEST 1 - All connectors connected
    Control Module Part Number: 8P0 907 115 AC HW: 8P0 907 115 B
    Component and/or Version: 2.0l R4/4V TFSI 0010
    Software Coding: 0103000C180F0160
    Work Shop Code: WSC 06314 000 00000


    008852 - Fuel Pressure Regulator Valve (N276)
    P2294 - 004 - Open Circuit - Intermittent
    Freeze Frame:
    Fault Status: 00100100
    Fault Priority: 2
    Fault Frequency: 1





    TEST 2 - CLEAR ERRORS, UNPLUG TOP CONNECTOR

    1 Fault Found:


    008852 - Fuel Pressure Regulator Valve (N276)
    P2294 - 004 - Open Circuit - Intermittent
    Freeze Frame:
    Fault Status: 00100100
    Fault Priority: 2
    Fault Frequency: 1



    TEST 3 - CLEAR ERRORS, PLUG IN TOP CONNECTOR, UNPLUG BOTTOM CONNECTOR



    2 Faults Found:


    009529 - Low Pressure Fuel Sensor (G410)
    P2539 - 001 - Open Circuit
    Freeze Frame:
    Fault Status: 01100001
    Fault Priority: 2
    Fault Frequency: 1


    008852 - Fuel Pressure Regulator Valve (N276)
    P2294 - 004 - Open Circuit - Intermittent
    Freeze Frame:
    Fault Status: 00100100
    Fault Priority: 2

    TEST 4 - CLEAR ERRORS, PLUG IN BOTTOM CONNECGOR. UNPLUG G247 CONNECTOR UNDER INTAKE (NOT ON FUEL PUMP)



    don't even have to start car, comes up with:


    1 Fault Found:


    000400 - Fuel Pressure Sensor (G247)
    P0190 - 001 - Circuit Malfunction
    Freeze Frame:
    Fault Status: 01100001

    So, it's all pointing up to the 'top' connection on the fuel pump, which came with the new one.
    That sounds like the 'connector' at the top of the fuel pump (that plugs in to the fuel pump), or the other end where that cable actually goes to (ECU, fuse, relay, another spot)???

  8. #18
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    Your first scan points to N276 on top of fuel pump which is what I was referring too & ive had a similar issue with B7 RS4

    You can swap that with another one one another pump to test and see if you get same error code.

    Just undo slowly as there will be pressure with fuel in it.


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  9. #19
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    Hey Mike, just note the N276 on top of the pump IS a new one, it's a whole new pump... Same error as I had with the OLD pump..

    The only think that I had to take off the old pump was the bottom/side connector...

  10. #20
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    the part i meant to try replacing was the G410 sensor, especially now as you say the connector is broke...

    G410 Low Pressure Fuel Pressure Sensor - 06E 906 051K - 1173 (uspmotorsports.com)

    it really is guess work though and i don't think the G410 sensor have a high fail rate so i'd start to chase wiring now. starting with the pins in the broken connector then the wiring to the N276...

    its strange that this all happened after you removed fuses from the fuse box though. if i was a betting man I'd guess that's the issue. Have you removed and replaced all fuses / relays checking that each one is the correct part in the correct spot and not blown...

    i've got a spare G410 i could send you for trouble shooting but i'm not home for a week so see how you go...
    Last edited by guile; November 23rd, 2021 at 04:19 PM.

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