Which is the pin for the oil light?

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mariner
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Which is the pin for the oil light?

Post by mariner »

Hi all. As above, is anyone able to identify the oil light pin on the dashpod I have? Have changed the plastic pcb for the cluster repair kit recently. The connector identifies no. 12/13 as oil but these kits are for a number of different dashpods and not sure this applies to mine. Does the colour of the wire indicate universally across all dashpods? Thanks for any help.
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1985 Super Viking with Subaru EJ22 (formerly 1.9 petrol DG)
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CJH
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Re: Which is the pin for the oil light?

Post by CJH »

Pin 13 I think - the blue/black wire on the left in your last photo.

This from the wiki
Image
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CJH
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Re: Which is the pin for the oil light?

Post by CJH »

mariner wrote:Does the colour of the wire indicate universally across all dashpods?

Sorry - to answer your question: yes, the wire colours do seem to be largely constant between different versions of the multiplug, even though the pin positions changed. I've attempted to collate some information on this in the assembly notes for my own dashboard PCB, here.
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AngeloEvs
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Re: Which is the pin for the oil light?

Post by AngeloEvs »

Dashboards with vertical connector have the oil pressure LED directly controlled by the oil pressure switch. Later dashboards have oil pressure LED controlled by the DOPs pcb that is in the speedo. On later dashboards, Pin 13 (blue with black stripe) is the 0.3 bar oil pressure connection. The oil pressure led will not function without the DOPs pcb (unless the kit allows you to connect pin 13 directly to the oil pressure led via a limiting resistor).

You do not say which kit you have so check the instructions to see if you can configure the oil pressure led to suit early or late vans.
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mariner
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Re: Which is the pin for the oil light?

Post by mariner »

Thanks, really helpful. My van was registered in March ‘85. Is it usual to not have the yellow oil pressure high wire? Thanks again, gives me a good starting point.

Angelo, I have the horizontal plug analog water cooled engine clock kit. Although I don’t have the instructions anymore! Wired it as instructed but will go back and check this in light of what you’ve said - thanks.
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AngeloEvs
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Re: Which is the pin for the oil light?

Post by AngeloEvs »

Does your speedo have the DOPs (Dynamic Oil Pressure) pcb in it? Identifiable by a slot with 6 pins on the rear of the speedo.

Early petrol vans pre 86 only had the one oil pressure switch.
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mariner
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Re: Which is the pin for the oil light?

Post by mariner »

No there weren’t any of the pin/slots on the back of the speedo so no DOPs.

Just to give a quick bit if background - oil light had been working fine with the original pcb until I had to take the dashpod in/out a few times for another issue. During the taking in/out the pcb got damaged and speedo light failed. This was an obvious fault as the pcb snapped by the speedo light. The oil light also stopped working at the same time. Ended up fitting cluster repair kit to pass MOT. This solved the speedo light problem but not the oil light. I wonder if I may have damaged the pin when taking the dashpod in/out several times.
1985 Super Viking with Subaru EJ22 (formerly 1.9 petrol DG)
1981 air-cooled 2.0 high top

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AngeloEvs
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Re: Which is the pin for the oil light?

Post by AngeloEvs »

Your edge connector is set for the later dashboard so I assume your kit is also for the later dashboard but you do not have the DOPs pcb whch means the oil pressure led will not function.

Which kit have you ftted and does it have connectins for a DOPs pcb even though you do not have one?
1987 DG Karisma LPG with remodelled interior

mariner
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Re: Which is the pin for the oil light?

Post by mariner »

I’ve fitted the horizontal analog clock water cooled engine kit. It was the one recommended by campervan culture after sending them some pics of the dashpod. It does have the connections for the DOPs pcb but my understanding is that this because the kit fits several different versions of the dashpod.

Based on what you’ve said I think it might be worth getting back in touch with CC, although the oil light wasn’t working before the changeover.
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CJH
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Re: Which is the pin for the oil light?

Post by CJH »

AngeloEvs wrote:Dashboards with vertical connector have the oil pressure LED directly controlled by the oil pressure switch. Later dashboards have oil pressure LED controlled by the DOPs pcb that is in the speedo. On later dashboards, Pin 13 (blue with black stripe) is the 0.3 bar oil pressure connection. The oil pressure led will not function without the DOPs pcb (unless the kit allows you to connect pin 13 directly to the oil pressure led via a limiting resistor).

Ah, this is making more sense to me now. So the original foil circuit boards which provide a connection to the DOPS board omit the direct limiting resistor. I have seen an example where a limiting resistor has been placed directly across pins 1 and 4 on the DOPS connector. This would have the effect of bypassing the DOPS board circuitry that controls the oil LED - maybe because the DOPS pcb in that example had developed a fault.
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AngeloEvs
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Re: Which is the pin for the oil light?

Post by AngeloEvs »

If the connections for the DOPs pcb are supplied then you can, as Chris says, bypass the DOPs.

The wires or connections to the DOPs pins 1 and 4 ( from left to right viewing from the rear) can be connected together without requiring a 470 ohm limiting resistor if you purchase a 12v LED ( available in flashing types if preferred) or if using a standard LED then remove one of the 470 ohm resistors from your old plastic pcb and insert it between 1 and 4.

If this kit is sold as being compatible with all dashboards then it should have some method for the oil pressure led to function without needing the DOPs pcb.
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Re: Which is the pin for the oil light?

Post by zenecho »

AngeloEvs wrote:Does your speedo have the DOPs (Dynamic Oil Pressure) pcb in it?

Thank you I have seen "DOP" used on mutiple occassions but was unable to discover what it actually was, I just assumed I did not have one, now I know I dont :)
1981 2ltr Petrol air cooled T25 high top Talula - Proud owner since 2004

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