89 405 no start! PLEASE HELP !!
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  1. #1
    Tadpole
    Join Date
    Jan 2005
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    sydney
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    Default 89 405 no start! PLEASE HELP !!

    Hi, I am the owner of a 1989 405 1905cc petrol.
    Just recently my valiant workhorse suffered a blown head
    gasket which was replaced. The entire head of the engine
    was reconditioned as well. When we put the head back on
    the block we can't get the car to start. The dash ignition lights go on, but
    we don't get a spark nor does any fuel through the fuel supply to injector header ( presumably because there is no power to the fuel pump).
    All 6 relays in the 2 black boxes under the bonnet have been cheched out and are OK. All of the relays on the main fuse box have been checked out except for the 2 which contain elctronic components. In a desperate bid we replaced the ECU computer but still no spark and no fuel pressure. Any suggestions would be very much appreciated.

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    Last edited by speedymcguggins; 15th January 2005 at 04:02 PM.

  2. #2
    Tadpole
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    Jan 2005
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    sydney
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    5

    Default checked connections

    We checked the connections and a fairly sure that they're ok.
    Also the starter motor solenoid kicks in but we get no spark and
    no fuel pumping in the system. Thnx for the help.

  3. #3
    1000+ Posts alan moore's Avatar
    Join Date
    Oct 2001
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    Ipswich, Queensland.
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    Default

    On the series 2 at least and probably on a series 1, at the front and under the LHF guard there is a brown unusual relay block about 70mm long,30 wide,50 high, in this there are two relays that control power to the fuel pump etc. If you disconnect this and look at the underside you may find it is burnt near the connections.

    I have seen two fail and the pug dealer where I bought the replacement said they sell them quite regularly.
    '56 Renault 750 (16TS Power)
    '62 Renault Dauphine Gordini
    '89 Renault Alpine GTA V6 Turbo
    02 and 03 Renault Clios 1.4L
    '13 Renault Megane RS265 Trophee +

  4. #4
    Tadpole
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    Jan 2005
    Location
    sydney
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    Default

    Looked for the relay box that you described and the only thing I could find
    on the LHF was a small junction box for the power supply.
    On the right hand side there was however a larger square
    black box containing three relays. We checked the relays
    and they are all fine. One of the relays was connected to
    fuel pump, when we put power through it, it started pumping
    gas. We have checked the connections and they all appear
    to be fine. We are absoluteley mystified, I am guessing
    something else was damaged when the gasket blew, as the
    car started fine before that.
    Perhaps a sensor that was damaged when the gasket blew,
    thats telling the ecu not to spark or pump gas?
    Or perhaps there is some small thing
    that we have overlooked when we put the car back together.
    Any help is greatly appreciated.

  5. #5
    Tadpole
    Join Date
    Jan 2005
    Location
    sydney
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    5

    Default inertial cutout

    Can anyone else give me any more information about
    this inertial cutout that jester_fu speaks of above?
    Ie location purpose etc
    Cheers

  6. #6
    1000+ Posts
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    Jul 2001
    Location
    Perth, Western Australia
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    Default

    Speedy, what Jester's referring to is a device that cuts off ignition and fuel when the car's in a big shunt, or rolls over, to prevent fire. To be honest, I didn't know the 405 had one, so I'm looking forward to finding out too...

    Stuey


    2003 PEUGEOT 206 GTi

  7. #7
    1000+ Posts edgedweller's Avatar
    Join Date
    Jul 2004
    Location
    CLARE SA
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    2,324

    Default

    Does this vehicle have a low oil shut out device?

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