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Discussion Starter #1
Hi Guy's,

I have brought a van that has had a new engine (DHX engine) so I have had to rewire the engine bay using this: If its the bosch pump, the main wires you need will just be the stop solenoid on the pump, glow plugs and starter solenoid, that should get you started (From another website)..

Anyway, the problem that I have is that when I turn the ignition on I get no heater plug light which in turn means the heater plugs don't work..

Can anyone recommend any ideas???

Many thanks in advance

Ash
 

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The wiring for the replacement engine you have sounds like 406 dt type should be similar to the original i assume non turbo wjy engine it had

Have you got it running or are you still trying to get it started

What engine did it have before

Have you removed the immo box from the pump
 

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Discussion Starter #3
Hi, I don't know what engine was in it before (All I know is that it's logbooked as a 2.0 ltr) and there are loads of wires for the injectors (which it no longer has (has a bosch pump))

Ive had it running (I've had a wire direct from the battery to the heater plug for a few seconds and then turned the key and it starts)

don't know what the immo box is???

Thanks

Ash
 

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If it was a 2 litre then it had an hdi in it RHY code you will see that in chassis code heater plugs on those are controlled by ecu so you need to get an older style glow plug relay and wire it in they have lots of wires but you only need the main ones

power earth and trigger there are also one for temp sensing and the wire to the dash light.

Or you could just fit a big button on the dash to control them either way you have a bit of wiring to do

You cannot use an hdi relay it works differently i know i tried :)
 

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Discussion Starter #5
Well.. There is one of these on the inner wing (
with a multi plug going into it (5 or 6 wires as I remember) and then 2 thicker cables coming off & going into the loom

Thanks
 

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That looks like the hdi one it wont work although the one you need is similar been a while since i have had to worry about glowplugs i do mostly hdi stuff now they do not really need them.
If you join the 2 fat wires together while cranking it will start but i guess you know that

I suppose you could just wire a big relay to those and switch it manually depends how neat you want it :)
 

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Discussion Starter #7
I was thinking of wiring an ignition feed to the relay to bridge a feed from the battery to the heater plugs but I guess it will leave a constant feed to the heater plugs.. (Am I right in thinking that)??

Thanks
 

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If it is the correct glow plug relay then all it needs is an ignition feed and earth to work but you will not get a glowplug light you would need to listen for it clicking on and off this would be ok but not ideal.

If on the other hand it is indeed an hdi relay it simply will not do anything when powered
 

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Discussion Starter #9
just something else that is going through my head is that on the same side inner wing there is a red box with a multi plug going to it (any ideas what this is)??

Other than that, I will have to check what the writing says on the relay box..

Many thanks for all your help..
 

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without seeing its hard to say but that could be the connection for the original loom as it would have a round multiplug with lots of connections

Is the wiring for the injectors etc still in place ?

Is the ecu still there ?

An underbonnet pic might be in order :) im off to bed catch you tomorrow
 

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If it was a 2 litre then it had an hdi in it RHY code you will see that in chassis code heater plugs on those are controlled by ecu so you need to get an older style glow plug relay and wire it in they have lots of wires but you only need the main ones

power earth and trigger there are also one for temp sensing and the wire to the dash light.
Sorry to crash in on this thread but does anyone know which wire's which on the multiplug, and where the temperature is 'sensed' from?

My glowplug light (S reg 1.9D Expert) comes on but goes off after a split-second or so. I've tried a couple of different relays but they all seem the same so was wondering if it's a temp sensing fault with a sensor that I could maybe disconnect just to 'prove a point'.

Thanks in advance!
 

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You may have a faulty glowplug causing the relay to sense too much current and shut down

Plug a relay into the multiplug without connecting the main heavy wires if the relay seems to work properly then you are likely to have a bad plug
 

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You may have a faulty glowplug causing the relay to sense too much current and shut down

Plug a relay into the multiplug without connecting the main heavy wires if the relay seems to work properly then you are likely to have a bad plug
Brilliant! One of the plugs was faulty and was shorting as you suggested. It's actually sheared into the head and won't unscrew but I've disconnected it and it's starting fine on three.

Thanks for that!
 
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