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Thread: Vauxhall Astra 1.6 Intermittent fault on EML

  1. #1
    Join Date
    Aug 2013
    Posts
    2

    Default Vauxhall Astra 1.6 Intermittent fault on EML

    Vauxhall Astra 1.6 1998-00 Astra G Engine code X16 XEL 51 reg. SXI

    My daughters car has been acting up with an intermittent fault. The car runs ok round the town and on carriageways around the town.
    It idles ok.
    Once on the motorway after about 15 to 20 minís at around 65 - 75 mph the EML light comes on and the engine goes into limp mode. If she pulls over onto the hard shoulder and switches the ignition off and then back on again it starts ok with the EML light out and then after about 5 to 10 more minís driving it happens again. If she pulls off the motorway resets the EML light by stopping and switching off the ignition and back on again she can then using back roads drive back home without any problems.
    Garage said it was the EGR valve sticking and removed it and cleaned it, she tested the car next day and after driving around the town for 20 minís without any problems she tried it on the motorway again, after 15 minís on the motorway at around 65 - 75 mph it did the same thing again. A friend of hers after looking up faults on the EGR valve on the internet tried blanking off the ports on the EGR valve with a blank made out of a coke can and they tried it again but it did the same thing again. Took it to another Garage for a fault test with a plug in diagnostic tool they said that no fault codes were showing up.

    Air filter has been changed since, Last service was last year.

    Any ideas on where to start would be appreciated

  2. #2
    Join Date
    May 2012
    Posts
    125

    Default

    Bibio,
    If your car is going in to limp mode and the eml light is coming on then there has to be a code stored in the ecm,

    Reading this code is your most efficent way of curing your problem,What scanner did the garage use?
    There are many cheap scanners out there that will either give you a wrong code,or not give you a code at all,which in turn have sent many the person on a expensive goose chase,

  3. #3
    Join Date
    Aug 2013
    Posts
    2

    Default

    hi
    Have managed to get a fault code for it today.
    fault code
    P0607 knock signal circuit
    (00) not present

  4. #4
    Join Date
    Oct 2007
    Location
    Middlesex
    Posts
    8,509

    Default

    I would check the multiplugs as the code says 'not present'. I would suspect a faulty connection getting warm and building up resistance.

  5. #5
    Join Date
    May 2012
    Posts
    125

    Default

    I have not seen a car to cut out due to the knock sensor being faulty yet,but it may be possible that wires are shorting to ground and in turn knocking out the ecu,
    Your first line of attack would be to get your knock sensor and wiring tested and go from there,

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