Idle control valve

  1. Frequent Poster Joined: Nov 2007 Glasgow Posts: 996 Mazda 3 MPS
    #1
    Cars been revving the t*ts off itself for the last few months when idling. Usually starts up when the cars warmed up.

    The car also doesn't start properly when cold, splutters a bit and sometimes cuts out unless I rev it.

    Seems to misfire a lot when I'm driving too and now that I'm using the car a bit more it's doing my head in.

    Question is, having searched, there is a few mentions of a stepper motor, am I right in thinking this is the same as the ICV?

    Also I cleaned the ICV a while back and it's still not working properly so I'll need to buy a new one. Does any ICV fit or are they specific to the model? I have a 52 plate VTR.
  2. Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.
    #2
    All saxo icv`s across the range will fit & work,& yes a stepper motor is the same thing.
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  3. Established Member Joined: Jan 2012 Cambridgeshire, England Posts: 2180 Saxo 1.1, Fiesta Zetec S
    #3
    Quote:
    Originally Posted by stevo67 View Post
    All saxo icv`s across the range will fit & work,& yes a stepper motor is the same thing.
    Icv's are different on different engine sizes, vtr ones are too big for 1.1's for example.
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  4. Frequent Poster Joined: Nov 2007 Glasgow Posts: 996 Mazda 3 MPS
    #4
    cheers guys.

    so a vts one would fit a vtr?
  5. Established Member Joined: Jan 2012 Cambridgeshire, England Posts: 2180 Saxo 1.1, Fiesta Zetec S
    #5
    No, probably not, i think they would be different sizes. I have a vtr one you could have for £5 if you want? Not sure on how well it works but was ok when i had it on my vtr
  6. Saxperience Forum Bum Joined: Dec 2012 Perth Posts: 3665 Peugeot 106 1.1 Turbo Peugeot 106 1.5D Turbo Peuge
    #6
    ICV doesn't do anything when you're driving.

    IDLE control valve.

    You might have a faulty TPS (this can cause the ICV to open and close when driving), MAP or lambda sensors causing your fuelling to be incorrect.


    Since it's heat related, it could be the coil pack. they break down in high temps and at higher revs.
  7. Frequent Poster Joined: Nov 2007 Glasgow Posts: 996 Mazda 3 MPS
    #7
    Quote:
    Originally Posted by DAMSK11 View Post
    No, probably not, i think they would be different sizes. I have a vtr one you could have for £5 if you want? Not sure on how well it works but was ok when i had it on my vtr
    I'll be in touch about that, getting a diagnosis done on the car next week now so if its the ICV I'll have this off you.

    Quote:
    Originally Posted by MartinObviously View Post
    ICV doesn't do anything when you're driving.

    IDLE control valve.

    You might have a faulty TPS (this can cause the ICV to open and close when driving), MAP or lambda sensors causing your fuelling to be incorrect.


    Since it's heat related, it could be the coil pack. they break down in high temps and at higher revs.
    Yeah I did mention that the car is revving when Idling, the misfire occurs when driving.

    Now that you mention that it's heat related, I have noticed the fan kicking in a bit more often than normal...?
  8. Saxperience Forum Bum Joined: Dec 2012 Perth Posts: 3665 Peugeot 106 1.1 Turbo Peugeot 106 1.5D Turbo Peuge
    #8
    Is it a 3 plug ECU? Could be air lock or a faulty coolant sensor.

    If it's single plug, then the coolant sensor and fan switch are separate so it's not that
  9. Frequent Poster Joined: Nov 2007 Glasgow Posts: 996 Mazda 3 MPS
    #9
    Quote:
    Originally Posted by MartinObviously View Post
    Is it a 3 plug ECU? Could be air lock or a faulty coolant sensor.

    If it's single plug, then the coolant sensor and fan switch are separate so it's not that
    Triple I think? 52 plate VTR...? Too many possible causes, my heads gonna blow up
  10. Saxperience Forum Bum Joined: Dec 2012 Perth Posts: 3665 Peugeot 106 1.1 Turbo Peugeot 106 1.5D Turbo Peuge
    #10
    Quote:
    Originally Posted by martinmac View Post
    Triple I think? 52 plate VTR...? Too many possible causes, my heads gonna blow up
    Just a typical French car showing it's age, that's all

    Start by changing the ICV, and removing,cleaning the throttle body and all the wee holes. Check for vacuum leaks too.