Connection to Injector No.4

Jamie T · Feb 20, 2020

Series III diesel owner here,

My Land Rover won't start; she turns over fine, and the oil pressure and cold start lamps both come on as they should, but she won't fire.
When I turned her over, there was some smoke coming from the wire from glow plug number four. Can anybody let me know how this should all be connected properly?

Thanks, Jamie

Blackburn · Feb 20, 2020

That is a glowplug not injector.

Jamie T · Feb 20, 2020

Blackburn said:
That is a glowplug not injector.

of course, ignore me.
does it look like it's connected right though?

Flossie · Feb 20, 2020

What he said^^^^^
Looks like you've connected the live black and yellow wire direct to earth? It will certainly smoke if you've done that.

Jamie T · Feb 20, 2020

Flossie said:
What he said^^^^^
Looks like you've connected the live black and yellow wire direct to earth? It will certainly smoke if you've done that.

where should it be connected to?

Rodeo Joe · Feb 20, 2020

If I were you I'd download the workshop manual and get some bedtime reading in.....
Google it its there for free if you look.

rob1miles · Feb 20, 2020

Take that wire off, tape it up and see if it starts. May not, depends if its series or parallel connected

Rodeo Joe · Feb 20, 2020

Get a photo of all the plugs then we can see how it should go...as said above it could be 2 different ways.

Jamie T · Feb 20, 2020

taken the wire off and taped it up, still won't start

Jamie T · Feb 20, 2020

Jamie T said:
taken the wire off and taped it up, still won't start

don't think these have been replaced so are probably in series

Rodeo Joe · Feb 20, 2020

It should be connected to the top of the one beside it then.

Jamie T · Feb 20, 2020

there's a couple of photos

Jamie T · Feb 20, 2020

Rodeo Joe said:
It should be connected to the top of the one beside it then.

i'm not sure i understand. there are wires connecting all the glow plugs together and then one further wire to the resistor, i think

Rodeo Joe · Feb 20, 2020

Yes thats right I don't see why you need that wire then and as said it certainly shouldn't go to earth.
Does it still turn over ok and puff out a bit of smoke?

Jamie T · Feb 20, 2020

Rodeo Joe said:
Yes thats right I don't see why you need that wire then and as said it certainly shouldn't go to earth.
Does it still turn over ok and puff out a bit of smoke?

still turning over, but now there's no cold start light

Flossie · Feb 20, 2020

That earth cable to number one injector looks dodgey and shouldn't go there. Fuel return pipe from number 4 injector - is that melted?
I scribbled down how the wiring went when I had a 2.25 diesel many yrs ago, think I jotted it down in the Haynes manual, I can go have a look for you when I get home much later if you like?

Flossie · Feb 20, 2020

Jamie T said:
still turning over, but now there's no cold start light

You may have melted the wiring between the resister and the ign switch.

Rodeo Joe · Feb 20, 2020

Ok I've worked out the geography of your pictures now, me being slow......It looks wired up ok but maybe you have shorted it out somewhere near the resistor looks like somethings got pretty hot so check the wiring for crispy cables. In the meantime do a google search for some photos of what it should look like.

EDIT if it did short you need to find out where otherwise fixing the wiring won't be enough.

Rodeo Joe · Feb 20, 2020

Maybe the resistor itself thats had it.

Jamie T · Feb 20, 2020

Flossie said:
That earth cable to number one injector looks dodgey and shouldn't go there. Fuel return pipe from number 4 injector - is that melted?
I scribbled down how the wiring went when I had a 2.25 diesel many yrs ago, think I jotted it down in the Haynes manual, I can go have a look for you when I get home much later if you like?

that would be really useful if you wouldn't mind. thanks in advance

Connection to Injector No.4

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