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    Seat Leon 1.9TDi FR - Intermittent power loss # Archived Message

    Posted by Sean Murphy on May 7, 2009, 2:15 pm

    Had this car in several times with an intermittent power loss when cruising at motorway speeds. VAGCOM diagnostic reports:

    Chassis Type: 1M - Seat Leon/Toledo
    Scan: 01 02 03 08 15 17 19 22 35 36 37 46 56

    VIN: VSSZZZ1MZ5R071327 Mileage: 91350km/56762miles
    -------------------------------------------------------------------------------
    Address 01: Engine Labels: 038-906-019-ARL.lbl
    Part No: 038 906 019 KG
    Component: 1,9l R4 EDC G000SG 5342
    Coding: 00102
    Shop #: WSC 06402
    VSSZZZ1MZ5R071327 SEZ7Z0E2933527

    5 Faults Found:
    17664 - Engine Coolant Temp Sensor (G62): Open or Short to Plus
    P1256 - 35-10 - - - Intermittent
    17932 - Fuel Pump Relay (J17): Open or Short to Ground
    P1524 - 35-10 - - - Intermittent
    18067 - Coolant Fan Control 1: Short to Plus
    P1659 - 35-10 - - - Intermittent
    19461 - Relay for High-Output Preheating of Coolant (J360): Short to Plus
    P3005 - 35-00 - -
    17957 - Boost Pressure Regulation Valve (N75): Open or Short to Ground
    P1549 - 35-10 - - - Intermittent
    Readiness: 0 3 0 0 0


    Have renewed the fuel pump (in tank) - no change
    Renewed the fuel pump relay - no change
    Renewed the N75 valve - no change
    Checked out the turbo actuator by applying vacuum to hose at N75 valve - actuator works freely and holds vacuum.
    Preheating relay inspected & tested and found OK.
    Checked and cleaned all the electrical earth points in engine bay and bulkhead area.

    I think that there is an 'electrical gremin' somewhere causing all these faults? Any ideas on what to check next or where to start looking for Mr Gremlin??

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