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stevedohc2b

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Posts posted by stevedohc2b

  1. Alternator Problems

    in Electrics

    Posted

    Right Nigel test is all ok

    had the battery tested all ok

    checked continuity all good.

     

    On cranking the battery volts drop to 10.5 volts

     

    have made a hot lead for ignition live feed and clamped to battery the dash battery light won't light till this is connected ?

     

    gave it a good rev and battery light went out drop revs Bach on and no volt increase at battery.

     

    Stephen

  2. Car Still Runs With Key In Pocket?

    in Electrics

    Posted

    Right Nigel test is all ok

    had the battery tested all ok

    checked continuity all good.

     

    On cranking the battery volts drop to 10.5 volts

     

    have made a hot lead for ignition live feed and clamped to battery the dash battery light won't light till this is connected ?

     

    gave it a good rev and battery light went out drop revs Bach on and no volt increase at battery.

     

    Stephen

  3. Alternator Problems

    in Electrics

    Posted

    ( Usefull tip is to remove the exciter lead from the alternator, extend it with a flying lead, ignition on. The ignition light should be off. Touch the end of the flying lead to the battery neg. Light on. Touch the end of the flying lead to the battery pos. Light off. No smoke at any time. Shows it's working as intended.)

     

    Nigel do you mean the warning light not the ignition live exciter lead.

     

    stephen

  4. Alternator Problems

    in Electrics

    Posted

    Hi

     

    i have a zetec with a small denso type alternator and broke down the other week with no charge going to battery.

     

    fitted a new alternator seamed to solve the problem then after a 2 mile test drive the volts dropped down to 12 and no charge to the battery.

     

    I had added some led driving lights before this happened and put MOT miles on before i broke down on a 100 mile run

     

    Took off and had both bench rig tested and no output. So fitted a new reg removed led lights feed,too no 2 and still no joy.

     

    how can i further bench test

     

    i have diode tested the rectifier in place and only reads one way

     

    help may be in the tin top at w/e

     

    Stephen

     

  6. Battery Warning Light

    in IVA

    Posted

    I found out how far you can drive on a battery when alternator gave in. I have a volt gauge that while driving through Blackwall tunnel went down to below scale, made it through but only had 9 volts at battery with a test meter at terminals car still running gave up 10 miles on so made about 15 miles with side lights on as well.

    so both are a help new one fitted and now get a good 14 volts.

     

    Stephen

  24. No Spark

    in Electrics

    Posted

    So it has run before,

    what was next thing you did then it did not run. Most problems link to last thing done I gave someone a jump start then my wipers would not work .

    turned out attaching lead to battery has damaged a wire feeding Ford loom for wipers .

     

    Stephen

  25. No Spark

    in Electrics

    Posted

    from haynes

     

    2.0 litre DOHC fuel injection models
    A development of the EEC IV system is
    used to control both the ignition and fuel
    injection systems. The module receives
    information from a crankshaft speed/position
    sensor (similar to that described for the ESC
    Hybrid system), except that the sensor is
    activated by a toothed disc on the rear of the
    crankshaft, inside the cylinder block), a
    throttle position sensor, an engine coolant
    temperature sensor, a fuel temperature
    sensor, an air charge temperature sensor, a
    manifold absolute pressure (MAP) sensor, and
    a vehicle speed sensor (mounted on the
    gearbox). Additionally, on models with a
    catalytic converter, an additional input is
    supplied to the EEC IV module from an
    exhaust gas oxygen (HEGO) sensor. On
    models with automatic transmission,
    additional sensors are fitted to the
    transmission, to inform the EEC IV module
    when the transmission is in neutral, and when
    the kickdown is being operated.
    The module provides outputs to control the
    fuel pump, fuel injectors, idle speed, ignition
    system and automatic transmission.
    Additionally, on models with air conditioning,
    the EEC IV module disengages the air
    conditioning compressor clutch when starting
    the engine, and when the engine is suddenly
    accelerated. On models fitted with a catalytic
    converter, the EEC IV module also controls
    the carbon canister-purge solenoid valve.
    Using the inputs from the various sensors,
    the EEC IV module computes the optimum
    ignition advance, and fuel injector pulse
    duration to suit the prevailing engine
    conditions. A “limited operation strategy” (LOS)
    means that the vehicle is still driveable, albeit at
    reduced power and efficiency, in the event of a
    failure in the module or one of its sensors.
    1.6 litre and 1.8 litre (R6A type) CVH models
    A development of the EEC IV system is
    used to control both the ignition and fuel
    injection systems. A fully electronic
    Distributorless Ignition System (DIS) is fitted,
    replacing the mechanical distribution of high
    tension voltage (by a rotating distributor) with
    “static” solid-state electronic components.
    The system selects the most appropriate
    ignition advance setting for the prevailing
    engine operating conditions from a threedimensional
    map of values stored in the EEC
    IV control module memory. The module
    selects the appropriate advance value
    according to information supplied on engine
    load, speed, and operating temperature from
    various sensors.
    The EEC IV module receives information
    from a crankshaft speed/position sensor
    (similar to that described for the ESC Hybrid
    system), except that on 1.6 litre engines, the
    sensor is activated by a toothed disc on the
    flywheel), a throttle position sensor, an engine
    coolant temperature sensor, an air charge
    temperature sensor, a manifold absolute
    pressure (MAP) sensor, a vehicle speed
    sensor (mounted on the gearbox), and an
    exhaust gas oxygen sensor.
    The module provides outputs to control the
    fuel pump, fuel injector, throttle valve control
    motor, pulse-air control solenoid, carbon
    canister purge solenoid (where applicable),
    and the ignition system.
    Using the inputs from the various sensors,
    the EEC IV module computes the optimum
    ignition advance and fuel injector pulse duration
    to suit the prevailing engine conditions. A
    “limited operation strategy” (LOS) means that
    the vehicle will still be driveable, albeit at
    reduced power and efficiency, in the event of
    a failure in the module or one of its sensors.
    Precautions
    General
    It is necessary to take extra care when
    working on the electrical system to avoid
    damage to semi-conductor devices (diodes
    and transistors), and to avoid the risk of
    personal injury. In addition to the precautions
    given in the “Safety first!” Section at the
    beginning of this manual, take note of the
    following points when working on the system.
    Always remove rings, watches, etc before
    working on the electrical system. Even with
    the battery disconnected, capacitive
    discharge could occur if a component live
    terminal is earthed through a metal object.
    This could cause a shock or nasty burn.
    Do not reverse the battery connections.
    Components such as the alternator or any
    other having semi-conductor circuitry could
    be irreparably damaged.
    If the engine is being started using jump
    leads and a slave battery, connect the
    batteries positive to positive and negative to
    negative. This also applies when connecting a
    battery charger.
    5•4 Engine electrical systems

     

    stephen

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