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Thread: issues when starting z18xe

  
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    airthy's Avatar
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    issues when starting z18xe

    if anyone could help i would be grateful

    the problem is when i go to start ma car it fires up as normal but sounds like

    its running on 3 cylinder if i leave it to tick over for a minute or so the engine

    runs properly and drives fine

    the car only does this from cold not when warm and the scan guage isnt

    picking up any fault codes.

    has anyone experienced this before?

    can anyone point me in the right direction of fixing this.

    thanks

    Chris

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    Rich GSI's Avatar
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    possible water temp sensor
    2.6 V6 MK4 astra

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    thanks for the reply

    thinking about it the water temp on the scan guage has been slightly higher than normal

    ill look into getting a new sensor

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    do you have a multimeter?
    2.6 V6 MK4 astra

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    yes im a sparky by trade is there a way to test the water temp sensor

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    yer here you go

    disconnect elec plug and test pins on the sensor

    pins 1 & 2
    with water temp @ 15°C
    typicaly - 3200 ohms

    pins 1 & 2
    water temp @ 90°C
    typicaly - 200 ohms
    2.6 V6 MK4 astra

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    thanks for that.

    would it effect the starting of the car because the ecu thinks the temp is

    different to its actual temp eg over fueling etc

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    yer exactly that. it would be the first thing id check. as you say it only happens from cold. usuall fault
    2.6 V6 MK4 astra

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    thanks for all you help rich

    ill try that test tomoz in the day light then if it turns out to be that ill let you know

    thanks again.

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    no worries
    2.6 V6 MK4 astra

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