Where will I find MAP sensor and CTS sensor on a late VTS

  1. Established Member Joined: Jun 2009 Southend, essex Posts: 2079 1999 mk2 VTS EP3 2004 civic type r
    #1
    Still trying to cure the warm idling issue on my VTS and these are the next two on my hit list. Where abouts are these two babies located?


    I really should buy a haynes


    Cheers Gavin
  2. Saxperience Post Whore Joined: Feb 2008 Liverpool Posts: 7393 Black Corsa C SRi
    #2
    map sensor is on the top inlet, right over on the left side. i dont know what CTS is?
  3. Established Member Joined: Jun 2009 Southend, essex Posts: 2079 1999 mk2 VTS EP3 2004 civic type r
    #3
    sorry coolent temp sensor or simular. Tells the ECU how hot the car is and how much fuel and air mix is needed etc


    Cheers map location is is the plug with the wire coming off of it that you can see quite clearly on the left of the inlet behind the block? and does it just pull out?
  4. Established Member Joined: Sep 2005 Guiseley, Leeds Posts: 1064 Vts turbo, 1.1 dsire, Pug 207.
    #4
    think it on the thermostat housing bit wich is to the right side of the head.. or on the right side of the radiator cts im asuming the water temp sensor.. the map plug just pulles out of the sensor unit itself yes
  5. Established Member Joined: Jun 2009 Southend, essex Posts: 2079 1999 mk2 VTS EP3 2004 civic type r
    #5
    Cheers Guys will take them out for a clean and maybe replace if they arnt too pricey as the cars very annoying in its current state and needs fixing
  6. Established Member Joined: Sep 2005 Guiseley, Leeds Posts: 1064 Vts turbo, 1.1 dsire, Pug 207.
    #6
    what engein is it off fella as im doing an engine swap and might have one spare in a few days so let me know how it goes and drop me a pm..

    if your takeing a sensor out of the coolant system it might mean draining the coolant system.
  7. Frequent Poster Joined: Nov 2007 auchinleck Posts: 682 Saxo VTS (Cammed)
    #7
    Quote:
    Originally Posted by gavin_t View Post
    sorry coolent temp sensor or simular. Tells the ECU how hot the car is and how much fuel and air mix is needed etc


    Cheers map location is is the plug with the wire coming off of it that you can see quite clearly on the left of the inlet behind the block? and does it just pull out?
    Theres 1 torx(i think) bolt that needs undoing then the sensor will just pull out.
  8. Regular Poster Joined: Mar 2007 Poole, Dorset Posts: 447 Mk1 VTS
    #8
    CTS is not really cleanable. I'd replace it as they are only about a tenner.

    MAP sensor is held in with a 5mm (I think) allen head screw and then just pulls out. There is usually a fair bit of oily gunk inside them if they have never been cleaned. I found the best way of cleaning to be squirting WD40 right inside a few times for a few seconds.

    I'd also try disconnecting and reconnecting every engine sensor a couple of times. This tends to improve electrical conductivity and hence improve the way the engine runs.
  9. Established Member Joined: Oct 2004 Warrington Posts: 1987 AX VTS 57 3.0 TDI A5
    #9
    brake n clutch cleaner works well on the map sensor. Just make sure wahtever you use its silicone free
  10. Saxperience Addict Joined: Jan 2007 Aylesbury, Bucks Posts: 12836 Yeaaahh Fiesta
    #10
    which of the 2 sensors on the thermostat is the cts?
  11. Established Member Joined: Oct 2004 Warrington Posts: 1987 AX VTS 57 3.0 TDI A5
    #11
    3 sensors sometimes,

    -brown is aircon so unused
    - green is the ecu temp sensor
    - blue is the dash temp sensor.
  12. Saxperience Addict Joined: Jan 2007 Aylesbury, Bucks Posts: 12836 Yeaaahh Fiesta
    #12
    good news i thought it was the green. couldnt quite remember. and couldnt be arsed to unplug one to see which is which
  13. Established Member Joined: Jun 2009 Southend, essex Posts: 2079 1999 mk2 VTS EP3 2004 civic type r
    #13
    cheers lads