Hymer with 2.8 jtd engine, ejector fault light coming on

Discussion in 'Fiat' started by Dergrowler, Oct 6, 2015.

  1. Dergrowler

    Dergrowler Funster

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    Hi all

    Just recently our Hymer B644 with the 2.8 jtd engine has started to play up with the ejector warning light coming on and the van seems to go into limp mode.

    Have taken it to a Fiat main dealer to have a diagnostic check carried out but as its a 2001 model the fault codes are very basic. They did come up with break lights or accelerator. As the accelerator control unit had been replaced just before we brought the van back in May they concentrated on the brake light switches which they seemed to think was a common fault, but I have not read this on any forum but seems to be common on VW transporters.

    Any way they replaced my engine battery as they said it had died on them, had no problems previously myself but it could just be a coincidence. They where also not happy with the wiring saying it was below standard but I think they just wanted to wash their hands of it and not have anymore to do with the van suggesting I get an auto electrician to look at it.

    I have surfed the Fiat forum and there seems to be a common problem with these 2001 model Fiats having wiring faults and possible loose connections has anyone else experienced this.

    Regards

    David
     
  2. HymerB544

    HymerB544 Funster

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    Not had warning lights coming on, but when we bought ours (a 2006 /56 plate) the tails lights played up a few times and we took it back to the dealer. he did fix it, but said the wiring behind the rear light clusters was exposed to all the muck thrown up by the rear wheels and this would cause poor connectivity. he recommended regular application of grease after reconnection. In four years I have only greased the connections once so it seems to have worked. Ours is also a 2.8jtd. Gary
     
  3. gus-lopez

    gus-lopez Funster

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    Yes brake light switch can bring on limp mode if it has the dual contacts. It has one set of normally open contacts for the brake lights & a second set which are normally closed that are commonly used for dropping out the cruise control
    ( tempomat )when you touch the brake pedal.

    Another 'limp mode' problem on them was wiring to the injectors . ( not sure if it was on that year model )
     
  4. Larby

    Larby Funster

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    A previous reply by me, may help?

     
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  5. Dergrowler

    Dergrowler Funster

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    Thanks for the replies will look at both areas and report back

    I did go to an independent first Larby but unfortunately with both their snap-on and another computer system they could not communicate with the ECU that was why I went to a main dealer but I will not be going back and I am looking around for another independent who has experience with light commercials in my area.

    David
     
  6. matamoros

    matamoros Funster

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    BIL had a 51 plate with same problem, after much searching it turned out to be the wiring to the injectors, mainly a bad connection made worse by the leads being too short. As far as I remember he eventually fixed it himself with a set of longer leads which I think are available as Fiat modification.
     
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  7. Dergrowler

    Dergrowler Funster

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    Thanks Matamors

    This know fault with the injector leads keeps cropping up and my van is also on a 51 plate so I will be looking in this area as soon as the weather is dry enough

    Thanks again for all the rapid replies.

    David
     
  8. Bigjr

    Bigjr Funster

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    I too have a 51 plate 2.8jtd that goes into intermittant limp mode especially over bumpy roads. I have tried most "fixes" suggested on this site and others with varying degrees of success. Could someone please help me by saying what the specific fault code would be if indeed the injector leads are at fault. I don't want to go to the expense of fitting lead extensions if this is not the problem.

    Thanks in anticipation.

    John
     
  9. Steve

    Steve Funster Life Member

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    had same problem, renewed wiring plug on no. 4 injector and rerouted the wires been ok for a couple of years now. But still carry a couple of spare plugs.
     
  10. denisejoe

    denisejoe Funster Life Member

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    wiring to injectors is a known problem Fiat deny there is a problem but made replacement sets of wiring longer. We had our replaced under warranty by Becks.

    Joe
     
  11. teensvan99

    teensvan99 Funster

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    Try and re route injector wiring as it is very tight and with engine movement the plug connectors are strained all the time. We had this problem with our 2004 2.8 jtd. Fitted tune it box with longer cables no more faults.
     
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