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Thread: FAO people with dropping revs problems on X18 XE1 engines

  
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    pardoe16V's Avatar
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    FAO people with dropping revs problems on X18 XE1 engines

    Ive been looking into the parts etc that cause the common problem of dropping revs when aproaching junctions etc, and have found out some things that some may or maynot know

    When people say there isnt an ICV (idle Control Valve) on the astra i thought how on earth does it know how the car is idling then??? turns out the ICV does exist but its a physical part of the TB, and there fore the reason why vauxhall change the TB when this problem occurs!

    Other thing is also, (after Jam informed me and i looked into it a bit) the 'engine temp sensor', which i believe is located on the inlet manifold, but on my autodata says on the manifold there is a 'intake manifold air control solenoid', which sounds like it could cause a problem with revs as it controls incoming air, (obviously ) so i may try replacing this to see if it cures the problem

    Ive replaced the EGR valve which helped alot, and highly recomend replacing it over cleaning it,

    just to let people know my progress, although im temped just to buy a dam new TB!!!!!

    MK4 1.8 16V Sport and MK5 CDTi Estate




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    Nice detective work Luke - I'll move this to N/A Faq's and Guides for future reference.

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    glad to be of service!

    MK4 1.8 16V Sport and MK5 CDTi Estate




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    ive got to buy a new TB coz my throttle position sensor is knackered.damn z18xe throttle bodys
    2001 mk4 astra cabriolet (without the sunshine option)




    injured in an accident in the last 2 1/2 years?
    be more carefull next time dickhead

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    Quote Originally Posted by happydude
    ive got to buy a new TB coz my throttle position sensor is knackered.damn z18xe throttle bodys
    maybe this will be of some use to you?
    http://cgi.ebay.co.uk/ws/eBayISAPI.d...MEWA%3AIT&rd=1

    MK4 1.8 16V Sport and MK5 CDTi Estate




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    Nice one!!

    My 1.8 16V Astra has been cutting out as I approach junctions for a while now (it stalls if you let the revs drop too fast) and this was just the info I have been looking for!! Gonna try blanking off the EGR first and see if it helps & I'm praying i don't need a new TB!!!
    '00 Astra 1.8 16V CDX in Metallic Green

    Panic, Chaos, Disorder . . . . . My work here is done!!

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    if your car is a Z18 XE then it doesnt have a EGR mate,

    EDIT, ive just got an email back from the chap, its done 15,000 miles

    MK4 1.8 16V Sport and MK5 CDTi Estate




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    i dont know wheather to risk bidding on this.gonna wait to see why hes sellin it.cheers anyway pardeo
    2001 mk4 astra cabriolet (without the sunshine option)




    injured in an accident in the last 2 1/2 years?
    be more carefull next time dickhead

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    Cheers Pardoe!
    I thought my engine was an X18xe1 engine (from what I can remember when i asked the local dealership!!) but will have to double check!

    Is there a definite way of checking which engine code i have for myself??
    '00 Astra 1.8 16V CDX in Metallic Green

    Panic, Chaos, Disorder . . . . . My work here is done!!

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    [quote=pardoe16V]
    Other thing is also, (after Jam informed me and i looked into it a bit) the 'engine temp sensor', which i believe is located on the inlet manifold,

    The engine temp sensor is all so know as tempsensor 2 which can all so be part off the stalling problem.
    When you guys clean the TB do you take it off the manifold??
    And do you clean the small breather at the base of the TB, also make sure you use a new gasket.
    i use a small artists paint brush and either carb cleaner or throttle body cleaner to clean the TB.
    Make sure there are no splits in any of the vaccum pipes or the air mass is not blocked.
    Make sure you clean the neck of the manifold before you put the TB back on .

    Hope this helps

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