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Thread: HELP problems with my astra 1.6 16v

  
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    HELP problems with my astra 1.6 16v

    I wonder if you can help me.

    I have a 2003 vauxhall astra 1.6 16v.

    Every so often the car cuts out when I stop at traffic lights or at a roundabout.

    The car has been looked at by a garage and they say it needs a new throttle body!!

    I have had a friend clean out the throttle body but the fault still occurs.

    My friend says he will fit me a new throttle body but I am worried that it won't fix it. Is there anything else I can try before I part with £500??? for a new throttle body.

    Thanks for your help.

    Cheers

    Chris

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    Is it hard to start afterward its cut out?

    Any fault lights at all?
    Its a jam thing

    Haec credam a deo pio, a deo justo, a deo scito?



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    Right first of all welcome to AOC....

    This is a very commonly asked question and because of this we have a common answer.

    You need to locate the EGR (Exhaust Gas Recirculating) Valve & ICV (Idle Control Valve) and give them both and damn good cleaning with carb cleaner - I presume this is what your "friend" used to clean out the TB. I'd also give the TB another clean incase it wasnt done thoroughly.

    Are u getting any engine management lights to indicate a fault? No way would a TB be required or at least not without any fault lights or checking the EGR & ICV first.

    We have a HOW TO in the technical section here: http://www.astraownersclub.com/vb/sh...ad.php?t=96753 which highlights how to clean these parts.

    Personally I believe it'll be the EGR at fault - but even if u were to replace both EGR and ICV then both parts will come in at less than £100 and both only take a couple of mins each to fit.

    Give both parts a clean and report back with ur findings....if the problem is cured then great...if it is but only temporarily then Id suggest replacing the above parts....

    Theres a few other components it could also be (Coil pack/CTS etc) but we can look into these at a later date

    Let us know how u get on and we can advise further on what to do and where to get replacement parts.

    HTH

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    Hi thanks for the information.

    The engine light and the oil light flashses on, however both the garage and my friend have had the car on the computer and no error is reported.

    I was also told the ICV was part of the throttle body? Is this correct?

    To answer the other question it takes a couple of attempts to get the car going again after it cuts out!!

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    Common problem with the 1.6 16v Z16XE engine is the coolant temperature sensor. It reports the temperature of the engine to the ECU and adjusts the air/fuel mixture to compensate for the engines temperature. When the sensor goes faulty the engine gets hot and the temp sensor all of a sudden reports that its cold. The ECU adds more fuel into the mixture and the engine floods itself. No error codes because the ECU is working correctly.

    Temp sensor £15 from Vaux and will take 10 mins to change over max.
    Its a jam thing

    Haec credam a deo pio, a deo justo, a deo scito?



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    If it makes it any easier to diagnose it only cuts out when I have been driving for about 45 mins and then it will be fine again for about the same amount of time!!!

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    Yep. It only cuts out when the engines hot. Then the sensor starts throwing a wobble and tells the ECU the engines cold. The ECU injects more petrol and you begin to feel it over rev then be really sluggish and almost cutting out then bam cut out when you dip the clutch.

    jam
    Its a jam thing

    Haec credam a deo pio, a deo justo, a deo scito?



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    Thanks for the info again!!!

    Sorry to go on but before the car cuts out it becomes really jerky, if i take the car out of gear and pull up the lights/roundabout it will still cut out even though the clutch is not dipped.

    Could you tell me where the temperature sensor is located?

    Thanks again

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    Front left side of the engine at the top should be green in colour
    Its a jam thing

    Haec credam a deo pio, a deo justo, a deo scito?



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