Torque Cars

mitsubishi gsr

Discussion in 'Lancer EVO forums' started by RFA9000, 19 October 2010.

  1. RFA9000

    RFA9000 Full member

    Messages:
    15
    From:
    southampton
    Car:
    mitsubishi gsr
    hi can anyone help, on first start up when cold the engine will rev up to 2500 rpm ive had the throtle set and had all the sensors checked all is ok the only thing that stops this from happining is to disconect the induction pipe between turbo and manifold and then it starts up and revs normal about 1500 has any one come across this befor any idears would help many thanks :D
     
  2. obi_waynne

    obi_waynne Administrator Staff Member Moderator

    Messages:
    41,289
    From:
    Deal, Kent UK
    Car:
    A3 1.4 TFSI 150 COD
    What is the normal tickover rate when warm? What mods have been done to the engine?
     
  3. RFA9000

    RFA9000 Full member

    Messages:
    15
    From:
    southampton
    Car:
    mitsubishi gsr
    tickover when warm is fine 850 and steady , it has a bailey dump valve ,air filter and back box and the intercooler pipe work has been changed for bigger id , when u start the car up from warm it revs to 1500 and comes bak down to 850 within seconds witch is what it should do it only rev high when cold , also, in case this helps, when started from cold and then has warmed for a few minuets so the idle has come down .when you first set off the revs go back up to 2000 for a mile and then all is fine ,i just cant work it out so any help would be grate
     
  4. Country Bumpkin

    Country Bumpkin Track Warrior

    Messages:
    735
    From:
    Norfolk
    Car:
    GTO T.T.
    The most probable cause is the idle control valve, it won't necessarily show up as a fault on a code reader as it is still working, just not properly.
     
  5. RFA9000

    RFA9000 Full member

    Messages:
    15
    From:
    southampton
    Car:
    mitsubishi gsr
    many thanks but the idle control valve has been cleaned ,checked and replaced so has the coolent temp sender for the ecu , i have been told to look in to the maf sensor as this could be telling the ecu the wrong info , could this be true? when the mot was done they did say although the co was in limits it was a bit high, could it be putting to much fuel in when cold ?
     
  6. Country Bumpkin

    Country Bumpkin Track Warrior

    Messages:
    735
    From:
    Norfolk
    Car:
    GTO T.T.
    Replaced, as in the same one ? Or another one/new one ?
     
  7. RFA9000

    RFA9000 Full member

    Messages:
    15
    From:
    southampton
    Car:
    mitsubishi gsr
    all three lol, it was cleaned refited ,then got one from the internet , then a new one from japan
     
  8. turbonutter69

    turbonutter69 TC ModFather Moderator

    Messages:
    18,967
    From:
    Alone in the dark.
    Car:
    Insignia SRI.
    What does it normally idle at when cold?
     
  9. Country Bumpkin

    Country Bumpkin Track Warrior

    Messages:
    735
    From:
    Norfolk
    Car:
    GTO T.T.
    Have you tried checking if any fault codes are stored ? Idle control valves and any electrical components are only as good as their wiring to/from them.
    We have had several cars where wiring faults were the cause, not the unit itself.
     
Loading...

Share This Page

Click Here
  1. This site, like pretty much every other site, uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are agreeing to our use of cookies, this may include third party cookies from our carefully selected advertising partners and for our analytics which allow us to see which pages are of interest and improve our site navigation and experience.
    You can disable cookies in your browser but this may affect your experience on this website.

    Dismiss Notice