INPA e46 m43 318i 1999 communication failure

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  1. INPA e46 m43 318i 1999 communication failure 
    #1
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    OK, a bit of history first. I bought the car as overheated, needed a head gasket and a skim. Not sure why it overheated previously but I have never seen the cooling fan working even when the engine temp gauge was in the red.

    Anyway, got it all running and plugged in the INPA, it's not sensing the ignition being switched on and only communicates with the engine, can't see what the body or chassis are doing, can't find out why the airbag light is on etc.

    I've seen this once before on an e46, there was a failed sensor on the auto box which stopped communication with everything, but this time I can look at the engine but nothing else.

    Any ideas?
     
     

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    Could be a few reasons for this, but... Are you using the 16-pin socket under the dash or the 20-pin socket under the bonnet?

     
     

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    wot interface are you using aswell?
    330i sport a big chunk of berlin...

     
     

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    Thanks for your reply.
    I'm using the one under the dash, right back down where the clutch pedal would be, never seen one that far down before, it's very earlr e46 with a build date of 52/98.
    The interface I'm using is a Gendan cable which has been modded.
    Strange thing is that this interface works on all my other BMWs.
     
     

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    Quote Originally Posted by keith M5 View Post
    I'm using the one under the dash, right back down where the clutch pedal would be, never seen one that far down before, it's very earlr e46 with a build date of 52/98.
    Buy yourself one of those 16-pin to 20-pin adaptors and use the 20-pin socket under the bonnet - you should get full access then.
     
     

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    OK,but I haven't seen a 20 pin plug, where would it be?
     
     

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    Quote Originally Posted by keith M5 View Post
    OK,but I haven't seen a 20 pin plug, where would it be?
    Should be by the strut tower, on the drivers side. http://www.peakeresearch.com/compatibility.htm
     
     

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    OK, an update from today. I've ordered the cable and found the port under the bonnet, didn't realise there was a 20 pin port on an e46, never seen one before.

    A friend of mine has another system, not INPA or Carsoft, plugged in under the bonnet had quite a few codes stored but nothing that seemed specific to the cooling system, just occupancy sensor and a lambda. So I've cleared all the faults and I'll see what comes up over the next couple of days.

    The good news is that the head rebuild looks good, no over heating and about the sweetest M43 I've heard, steering suspension all great, but then is should be with only 45k on the clock.

    Will the adaptor work straight away with my existing INPA set-up or do I need to do something with it?
     
     

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    Quote Originally Posted by keith M5 View Post
    Will the adaptor work straight away with my existing INPA set-up or do I need to do something with it?
    Should work straight away...
     
     

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    Ok, The 16-20 pin adaptor arrived today and it seems to work. Doesn't sense ignition on though.

    I'm getting codes 125 and 171. Code 125 is in English and is a Lambda issue, 171 is in German, not sure what it means, the car is down on power and won't rev. Any ideas?
     
     

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