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Turbo timer issue "Please Help"

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Nik_Lee
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2015/06/23 07:57:19 (permalink)
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Turbo timer issue "Please Help"

Hi everyone,
I decided to change my turbo timer on the weekend and install an ARK design STB and used a HKS adapter harness to wire it in, after wiring it all up I started the car turned the key back to acc and the timer counted down a shut the engine off as it should all seemed well.
I then tried again but turned the key off to remove the key and at this point the starter motor engaged... I double checked all the wiring and earths which was all wired as it should be but for some reason I can not turn the ignition off completely whilst the turbo timer is active or the starter motor will engage.
 
Whilst trying to work out the problem I googled the fault and found a few posts from people on the GT starlet forums having the same problem and another MR2 owner yet so far have not come across anyone finding a solution to the problem.
 
I am curious if anyone else here has ever come across the same problem and what they found?
 

Current ride, 2010 TT RS
Previous ride, 1994 JDM MR2 Turbo hardtop
http://www.mr2australia.c..r2play/tm.aspx?m=105959
 
#1


2 Replies Related Threads

    P E T E
    MR2 Aficionado
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    Re: Turbo timer issue "Please Help" 2015/06/23 09:27:43 (permalink)
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    Yep - this can happen on the MR2. I had the same issue when I changed the Alarm/immobiliser.
    After 7 years of ownership I ended up installing a relay to disengage the start motor when the turbo timer was running. You just wire it in underneath the steering column.
     
    Some people call this an 'anti-grind' circuit if you want to do more searching.
     
    This was the only solution I found.

    > P E T E <
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    Nik_Lee
    MR2 Deity
    • Total Posts : 539
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    Re: Turbo timer issue "Please Help" 2015/06/23 11:04:28 (permalink)
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    Hi Pete
     
    Thanks for your help, I will have to look into the anti-grind circuit.
     
    I found some relay diagrams for starter kill circuits from which I understand is the same as an anti-grind circuit is this similar to what you did?
    http://www.the12volt.com/relays/page2.asp
     
     
    Any idea what causes the problem to start with?
    post edited by Nik_Lee - 2015/06/23 12:34:00

    Current ride, 2010 TT RS
    Previous ride, 1994 JDM MR2 Turbo hardtop
    http://www.mr2australia.c..r2play/tm.aspx?m=105959
     
    #3

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