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    Re: 2002 (03) Ford KA Duratec Non-start Archived Message

    Posted by Peter Warman on May 8, 2007, 4:33 pm, in reply to "Re: 2002 (03) Ford KA Duratec Non-start"

    Hi Joe

    Found this on Vivid for 2002 on
    not sure if its teaching you to such eggs , but may be useful

    Looks like pin 1 & 3 go to ECU and pin 2 goes to fuel pump relay

    Some of the diagnosis data does seem a bit generic

    Specifications
    supply voltage: 12 V
    resistance primary coil: 0.5 - 1.2 ohms
    resistance secondary coil: 9,000 - 14,000 ohms
    waveform information: engine running at idle

    Scope 1
    M1, M3



    Diagnostics
    Check connector(s): Inspect the connector(s) and if necessary clean or fix them to make sure the connection is good.
    Check resistance primary coil:
    Turn ignition off. Remove connector from ignition coil.
    Measure resistance between supply voltage connector pin and primary switching connector pins of the ignition coil. Compare with specified resistance.
    Check resistance secondary coil:
    Turn ignition off. Remove spark plug leads from ignition coil.
    Measure resistance between ignition coil spark plug terminals 1 and 4 or 2 and 3. Compare with specified resistance.
    Check supply voltage:
    Turn ignition off. Remove connector from ignition coil.
    Turn ignition on or crank the engine and measure voltage between supply voltage connector terminal(s) and the negative terminal of the battery. It should equal battery voltage. If not check wiring and, if present, fuse and relay.
    Check connection to ECU:
    Turn ignition off. Remove connectors from ignition coil and ECU.
    Measure resistance between primary switching connector terminals and the corresponding terminals in the ECU connector. They should be < 1 ohm. If not check wiring.
    Check signal from ECU:
    Connect oscilloscope to one of the signal pins of the ECU and ground. Start the engine and compare to the scope image shown. Repeat measurement for other pin.
    When you get a good signal, the supply voltage and the connection to the ECU are good, the spark plug should spark.

    HTH

    Peter

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