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Thread: 2011 vw touran 1.6tdi cayc engine low fuel pressure

  1. #1
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    2011 vw touran 1.6tdi cayc engine low fuel pressure

    I'm new to this site it's my wife's car that im trying to fix there was two codes logged can't remember the codes but they were low fuel pressure and low fuel pressure regulator b exceeded took it to a rac approved garage under warranty and they changed the fuel pressure regulator and it's still the same they said the bearings and shaft on the high pressure fuel pump was worn and the rac refused to fix it under the warranty saying it was wear and tear it's a 2011 vw touran 1.6tdi cayc engine I took it from the garage fitted new lift pump and high pressure fuel pump and still the same any help will be appreciated.

  2. #2
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    Is it possible to start the car? When the error is thrown?

  3. #3
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    Yes car starts and sounds ok no injector knock or missing. ok in till you drive it and get above 2500 3000 rpm then goes into limp mode and shows two faults low fuel pressure and low fuel pressure regulator b exceeded

  4. #4
    Administrator Crasher's Avatar
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    Has it had a fuel filter recently? So the cam belt driven pump has been replaced, has the pump in the tank been replaced?
    2003 Skoda Octavia VRS Estate. APR 98RON remap, APR R1 diverter valve, Jetex exhaust, K&N panel filter, 7.5x18 Alutec Monstr wheels with 225/40 18 Uniroyal Rainsport 3 tyres.
    2006 Polo GTI 1.8T, APR 95RON remap
    1988 Golf 2 GTI 16 valve, 2.2 with Weber Alpha injection
    1983 Golf 1 GTI 8 valve, 2 litre with Eurospec racing 42/36 head
    1972 1302LS auto 1641cc conversion

    Vile Invention

    Dark was that day when Diesel conceived his grim engine that begot you, vile invention, more vicious, more criminal than the camera even, metallic monstrosity, bale and bane of our culture, chief woe of our Commonweal. How dare the Law prohibit hashish and heroin yet license your use, who inflate all weak inferior egos? Their addicts only do harm to their own lives: you poison the lungs of the innocent, your din dithers the peaceful, and on choked roads hundreds must daily die by chance-medley. Nimble technicians, surely you should hang your heads in shame. Your wit works mighty wonders, has landed men on the Moon, replaced brains by computers, and can smithy a "smart" bomb. It is a crying scandal that you cannot take the time or be bothered to build us, what sanity knows we need, an odorless and noiseless staid little electric brougham.

    W.H. Auden (1907-1973), A Curse:

  5. #5
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    Yes changed fuel filter first and I've changed both fuel pumps no inline one on it

  6. #6
    Administrator Keithuk's Avatar
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    Welcome to the forum.

    Sorry for the late reply I've had other computer problems this week.

    You need to post the error codes found?
    2010 Golf GTD (170) CBBB, 5 Door, Shadow Blue (P6/D5Q), Transmission Code: KXZ, Flat Tyre Indicator, Basic Protection Pack + VCDS.


  7. #7
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    It's ok fella I'm thankful for your help
    P008700=fuel rail/system pressure-too low
    P229A00=fuel pressure regulator 'B' exceeds control limits-pressure-too low
    Cheers

  8. #8
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    So at higher revs when pressure should be up on top its not there. If you would look at actual pressure in measuring blocks while driving before it goes into limp mode that might help. Maybe pressure sensor itself is playing up.

  9. #9
    Administrator Crasher's Avatar
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    So the garage fitted a new high pressure pump and cam belt which is around a 2000 job?
    2003 Skoda Octavia VRS Estate. APR 98RON remap, APR R1 diverter valve, Jetex exhaust, K&N panel filter, 7.5x18 Alutec Monstr wheels with 225/40 18 Uniroyal Rainsport 3 tyres.
    2006 Polo GTI 1.8T, APR 95RON remap
    1988 Golf 2 GTI 16 valve, 2.2 with Weber Alpha injection
    1983 Golf 1 GTI 8 valve, 2 litre with Eurospec racing 42/36 head
    1972 1302LS auto 1641cc conversion

    Vile Invention

    Dark was that day when Diesel conceived his grim engine that begot you, vile invention, more vicious, more criminal than the camera even, metallic monstrosity, bale and bane of our culture, chief woe of our Commonweal. How dare the Law prohibit hashish and heroin yet license your use, who inflate all weak inferior egos? Their addicts only do harm to their own lives: you poison the lungs of the innocent, your din dithers the peaceful, and on choked roads hundreds must daily die by chance-medley. Nimble technicians, surely you should hang your heads in shame. Your wit works mighty wonders, has landed men on the Moon, replaced brains by computers, and can smithy a "smart" bomb. It is a crying scandal that you cannot take the time or be bothered to build us, what sanity knows we need, an odorless and noiseless staid little electric brougham.

    W.H. Auden (1907-1973), A Curse:

  10. #10
    Administrator Keithuk's Avatar
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    Quote Originally Posted by Glenwayne1979 View Post
    It's ok fella I'm thankful for your help
    P008700=fuel rail/system pressure-too low
    P229A00=fuel pressure regulator 'B' exceeds control limits-pressure-too low
    Cheers
    When you post EODB II codes those are only 5 characters starting with a letter, not 6.

    e.g.

    VAG Error Code: 16471/15059/10116/5211/5212/5227/5231/2838/000135
    EOBD II Error Code: P0087

    Fault Location:
    Fuel Rail/System Pressure - Too Low/Implausible Signal

    Possible Cause:
    Malfunction Indicator Lamp (MIL)(K83) active.
    Power Loss.

    Fuel pressure too low.
    Fuel supply pipe blockage.
    Fuel pressure sensor harness open circuit or shorted.
    Fuel pressure sensor harness electrical circuit poor connection.
    Blocked fuel filter.
    Visual Inspection of Hardware (Camshaft, Cam Follower, etc).
    Mechanical Deficiency of Hardware (worn or missing parts) .

    Possible Solutions:
    Check/Replace all faulty Wiring/Connector(s).
    Check Measuring Value Blocks (MVB) for Fuel Pressure.
    Fuel trim activity 0.90 - 1.15.
    Output value rail pressure controller > 2 MPa.
    Difference between target and actual pressure > -16.38 bar.

    Fuel Rail Pressure Test with VCDS by Ross-Tech



    Check for bent/squeezed Fuel Lines.
    Check Low Fuel Pressure System for Leaks.
    Check Fuel Filter & Filter in Fuel Pump.
    Check the Fuel Quantity supplied by the Fuel Pump (G6).
    Visual Inspection of Hardware (Camshaft, Cam Follower, etc).

    Special Notes:
    Petrol/Gasoline:
    When found in 2.0l TFSI:
    Check Fuel Pressure.
    Check Technical Service Bulletin (TSB) 2027458/01-11-19 (North American Region (NAR)), for an improved Fuel Pressure Sensor (G410).
    Check Technical Service Bulletin (TSB) 2015153/15-11-03 (North American Region (NAR)), for a worn Intake Cam Shaft (superseded Technical Service Bulletin (TSB) 15-10-02, 15-11-01 and 15-11-02).
    Check Technical Product Information (TPI) 2014143 (Rest of World (RoW)), for a worn Intake Camshaft.
    Check Technical Product Information (TPI) 2014909 (Rest of World (RoW)), for a worn Intake Camshaft. This Technical Product Information (TPI) does NOT list in the Audi A6 (4F) BPJ Engine even though it is effected as well, so check for a worn Intake Camshaft of these too!
    When found on 2009 Audi 3.2 FSI AVS Engines, if Diagnostic Trouble Code (DTC) 000022/P0016 is flagged, please see Technical Service Bulletin (TSB) 15-09-04.

    Diesel:
    When found on Common Rail TDI engines, please see Technical Service Bulletin (TSB) 01-10-11 (Technical Product Information (TPI) 2023624).
    When found on Audi Common Rail V6, V8 and V12 TDI engines, please see Technical Product Information (TPI) 2020693. After mechanical all repairs are made Fuel Pressure Regulator Valve (N276) may need to be adapted and the EDC may need to be flash updated on the Audi Dealer level.

    Tech Notes:
    There is a service bulletin for the following Volkswagen vehicles:
    Volkswagen Eos 2006-2007.
    Volkswagen GTI 2006-2007.
    Volkswagen Jetta 2005-2007.
    Volkswagen Passat 2006-2007.
    Volkswagen Passat Wagon 2006-2007.
    Volkswagen Factory Service Bulletin OBDII Code P0087

    When is the code detected?:
    The Engine Control Module (ECM) has determined that the fuel rail pressure is too low for a specific engine RPM.
    2010 Golf GTD (170) CBBB, 5 Door, Shadow Blue (P6/D5Q), Transmission Code: KXZ, Flat Tyre Indicator, Basic Protection Pack + VCDS.


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