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Thread: JZA70 wont start...problem is very very wierd

  1. 30-06-2008, 10:58 AM #16
    MR 1JZ
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    Default Re: JZA70 wont start...problem is very very wierd

    right finally got around to doing some more testing on this sucker yesterday

    have now confirmed that the ECU is farked, tried it on a mates car and it didnt work...have tried a known working ECU and the check engine light goes away but it still wont start, there is no spark to be seen at all.

    Fuel pump is pumping but there is no spark

    First things first a new ECU is needed, which I am working on getting...

    what else could possibly be farked though?
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  2. 30-06-2008, 11:06 AM #17
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    Default Re: JZA70 wont start...problem is very very wierd

    Ignitor could be the cause of no spark...
    Quote Originally Posted by MR 1JZ
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  3. 30-06-2008, 11:16 AM #18
    MR 1JZ
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    Default Re: JZA70 wont start...problem is very very wierd

    tested another ignitor...same drama...

    didnt pull simons off to test on another car but im assuming its working...because I tested a known working ignitor on it with a known working ecu and same issue occurred
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  4. 30-06-2008, 11:34 AM #19
    takai
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    Default Re: JZA70 wont start...problem is very very wierd

    Check the caps in the ECU before you bin it.
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  5. 30-06-2008, 12:00 PM #20
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    Default Re: JZA70 wont start...problem is very very wierd

    "Cranks, fires, and dies immediately" The poor old ECU has no idea what is going on either not receiving signal from TPS, or AFM if you have one.

    cheers Chuck.
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  6. 30-06-2008, 12:01 PM #21
    MR 1JZ
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    Default Re: JZA70 wont start...problem is very very wierd

    Quote Originally Posted by takai
    Check the caps in the ECU before you bin it.
    ive put the ecu in my mates car and tried to fire it over...it does not work
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  7. 30-06-2008, 12:02 PM #22
    MR 1JZ
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    Default Re: JZA70 wont start...problem is very very wierd

    Quote Originally Posted by ChuckLandwehr
    "Cranks, fires, and dies immediately" The poor old ECU has no idea what is going on either not receiving signal from TPS, or AFM if you have one.

    cheers Chuck.
    so you think the TPS could be fubar?

    the ecu is definitiely farked...I just cant belive that 2 things have become broken at the same time
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  8. 30-06-2008, 12:54 PM #23
    takai
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    Default Re: JZA70 wont start...problem is very very wierd

    Quote Originally Posted by MR 1JZ
    ive put the ecu in my mates car and tried to fire it over...it does not work
    Nay, check the caps. If they are leaking then it is concievable that it has provided a nice power surge down a line that didnt like it at the same time as it died. I.e. it could fry circuitry in the MAP or TPS.
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  9. 30-06-2008, 12:58 PM #24
    Hengsta
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    Default Re: JZA70 wont start...problem is very very wierd

    ^^^ hrmmm good thinking there.

    We should have tried my MAP sensor aswell Matt.
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  10. 30-06-2008, 01:31 PM #25
    MR 1JZ
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    Default Re: JZA70 wont start...problem is very very wierd

    Quote Originally Posted by Hengsta
    ^^^ hrmmm good thinking there.

    We should have tried my MAP sensor aswell Matt.
    hmmmm

    you able to come back around tonight?

    I have spare Map sensor here...dont have spare TPS though...

    actually dont bother coming round tonight...wait untill I get a TPS...
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  11. 30-06-2008, 01:36 PM #26
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    Default Re: JZA70 wont start...problem is very very wierd

    LOL yeah i will... not come around ahah
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  12. 30-06-2008, 02:30 PM #27
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    Default Re: JZA70 wont start...problem is very very wierd

    lol

    ok then...so ive got to try another map sensor and another TPS...
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  13. 30-06-2008, 02:35 PM #28
    fatboy13
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    Default Re: JZA70 wont start...problem is very very wierd

    Is there spark at all... if its not ignitor or ecu, then what else regulates when it should fire?

    CAS?
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  14. 30-06-2008, 02:39 PM #29
    MR 1JZ
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    Default Re: JZA70 wont start...problem is very very wierd

    no spark at all

    please god dont let it be the CAS

    fucker of a job
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  15. 30-06-2008, 03:14 PM #30
    oldcorollas
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    Default Re: JZA70 wont start...problem is very very wierd

    does the car have "kustom" wiring?.. missing a relay to take load off the ECU etc?
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