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Author Topic: Butchers at this DX wiring diagram  (Read 6363 times)

Offline bmouthboyo

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Butchers at this DX wiring diagram
« on: 05 February 2011, 12:20 »
Hi,

I have found this wiring diagram that I am guessing the guy who put this DX engine into my camper van came up with. I am having a few issues with the cold start valve and so wanted to see if anyone would mind having a little look at this and seeing if you think it looks all OK.



Really appreciate all the help this forum has given me so far

Thank you  :tongue:
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Offline Ktuludays

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Re: Butchers at this DX wiring diagram
« Reply #1 on: 06 February 2011, 07:30 »
you may get more luck a volkszone mate
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Offline bmouthboyo

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Re: Butchers at this DX wiring diagram
« Reply #2 on: 06 February 2011, 10:49 »
cheers Ktuludays,

I posted over there too, usually someone helps me on this forum.

:)
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Offline rubjonny

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Re: Butchers at this DX wiring diagram
« Reply #3 on: 07 February 2011, 14:43 »
that diagram is correct except the red/black wire to the thermo time switch needs to run to starter motor pin 50 red/black cranking feed, and the black wire from the cold start valve needs to run to the 2nd terminal 50a on the starter motor.  you could put them both on the red/black wire really, or both to the 50a terminal on the starter. whichever is easiest for ya
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Offline bmouthboyo

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Re: Butchers at this DX wiring diagram
« Reply #4 on: 07 February 2011, 22:12 »
Thanks rj :)
I am not sure he has even stuck to his plan. With regards to your above advice does this diagram which i made showing how the 5th injector and cold start is ACTUALLY installed correct?



Thank you
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Offline rubjonny

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Re: Butchers at this DX wiring diagram
« Reply #5 on: 08 February 2011, 10:23 »
yeah thats fine, the 2nd terminal on the starter will work ok as long as its labled 50a, which id assume it is. basically this terminal is live when cranking, but it wont crank engine over if you put 12v to it (this is needed becasue later models also have a cold throttle enrichment wire to the 5th injector)
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Offline SoundillusioN

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Re: Butchers at this DX wiring diagram
« Reply #6 on: 08 February 2011, 10:31 »
Glad this thread has cropped up as I believe my cold start is not working so I have some info to check the setup with now.  However, as i've said before, it doesnt prevent the car from starting, just takes a little longer.
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Offline bmouthboyo

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Re: Butchers at this DX wiring diagram
« Reply #7 on: 08 February 2011, 12:56 »
Yea I find all this electrics stuff pretty confusing. I have a haynes manual and looked at rj's guide on how to understand it but still not really sure. I almost need a dummies version like here to get my head around it. I will try and get to grips with electrics I think soon a little more.

With regard to my engine not starting I think its a mixture of low fuel, dirty fuel and a well used small inline filter. I am going to remove it and try adn flush teh fuel tank out.
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Offline SoundillusioN

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Re: Butchers at this DX wiring diagram
« Reply #8 on: 08 February 2011, 13:16 »
Well I ended up rewiring the entire car as the electrics were so badly butchered... But i've had a few gremlins that RJ has helped me with over the last few months.

I'm still not sure about your engine issues being fuel related... when I saw how much fuel was being sprayed in your vid I didn't think that you'd struggle.  if you can see faults that are fuel related like cr@p filter etc then sure, sort them out but I'm still thinking timing or electrical (which I know you're looking into now). 

Keep at it mate because you're just like I was (with the electrics), pretty much in the dark to start with but each time you do find a problem and fix it, you remember for next time and eventually you'll know you're way around.  Redoing my car has made me understand it so much more than I though it would.

BTW, what makes you suspect the fuel is dirty and how old is it?
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Offline bmouthboyo

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Re: Butchers at this DX wiring diagram
« Reply #9 on: 08 February 2011, 16:39 »
Well the van has been sat for 7 years in total really! It was running last year but didnt drive and it got left whilst i moved place etc. Nothing done to car but wont start at moment.

I had added a little fuel but to be honest most prob used when ticking it over last year. I disconected the fuel pipe from the tank and only a little ran out so im thinking it needs some fresh. The old filter and the little inline one were absolutely filthy and the colour of the fuel as in my vid is very dark.

I checked timing and its fine, and unchanged from when running a year ago. I have changed the metering head as I had bought a few second hand ones previously. The vid was with the metering flap help fully open. Touch wood it just needs fresh fuel and restrictive inline filter removed. If that doesnt sort it im going to try and source a fuel pressure tester.

I am off for a week on half term soon so will get a nice long chance to nosey about, so no doubt youll see more of be then :)

Cheers
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