temp sender wiring

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Betty boop 1
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temp sender wiring

Post by Betty boop 1 »

can i start with an apology been quiet for a why as it looked like id been blocked.....thankfully and evidently not temp gauge doesnt work read a lot of useful and previous threads but can anyone tell me what the wiring should look like please.....for some reason the plug has been cut off the sensor wiring and i need to know which is which for the new sensor....its never worked in the 6 yrs we have had her...so time to sort  

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Mocki
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Re: temp sender wiring

Post by Mocki »

Hello
you are going to have to give us a bit more to go on here , age of van, engine type and size , what colour wires ect 

ideally a good clear photo would get you faster more accurate replies ……
Image
Steve
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1989 2.1LpgWBX HiTop Leisuredrive Camper
1988 2.1 Caravelle TS TinTop Camper 
 

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Robsey
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Re: temp sender wiring

Post by Robsey »

From reading your other posts, you have a lot of electrical problems. Especially around the fuse box.

As mentioned above -
First things first - what van do you have?
Early van or later van. - what model year?
Petrol or diesel. - which engine is fitted?

If you are talking temperature gauge sender, it should have a yellow wire with a red stripe along it.

Which connector?
Fuse box four pin connector (later vans).
Relay type block on the lower left inside a pillar (early vans).
Or the sensor connector itself on the thermostat housing on the engine.
1983 Tin Top with a poorly DF and 4 speed DT box.
1987 Electrics and a DJ engine.
Maybe one day I might get it finished

Betty boop 1
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Re: temp sender wiring

Post by Betty boop 1 »

Hi sorry..... 1.9 dg 1986 the wires below....im hoping have uploaded were connected to the carb temp sensor 🤔 but when disconnected and bridged operated the temp gauge indicating they are the coolant sensor wires i have traced them back into the black box where they connect to.....i believe a yellow wire with red trace and a brown wire... the plug connector has been cut off so no idea what should go where.....please be advised this wiring is NOT my handy work......the connector that has been cut off is the connector/plug that goes onto the coolant temp sensor on the back of the stat housing....if that makes sense
ImageImageImageImageImageImageImage

Betty boop 1
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Re: temp sender wiring

Post by Betty boop 1 »

Robsey wrote: 27 Jun 2021, 21:37 From reading your other posts, you have a lot of electrical problems. Especially around the fuse box.

As mentioned above -
First things first - what van do you have?
Early van or later van. - what model year?
Petrol or diesel. - which engine is fitted?

If you are talking temperature gauge sender, it should have a yellow wire with a red stripe along it.

Which connector?
Fuse box four pin connector (later vans).
Relay type block on the lower left inside a pillar (early vans).
Or the sensor connector itself on the thermostat housing on the engine.
###############################################################
The wiring is appalling and by all accounts the previous owner was an electrician its been a slow process taking out the bodges as i come across them 


 

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Mocki
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Re: temp sender wiring

Post by Mocki »

initial thoughts when seeing those pictures ……..What I am not seeing there are the oil pressure sender wires …..

so , I’m am assuming you need the junction box wiring to the main loom connections ?
our man Robsey did a excellent break down of this , if that what you need 
 Lighting connector is as follows.
 T7/1 = Black / White for left indicator
 T7/2 = Black / Green for right indicator
 T7/3 = Black / Red for both brake lights
 T7/4 = Grey / White for the rear fog light
 T7/5 = Grey / Black for left tail light
 T7/6 = Grey / Red for right tail light
 T7/7 = Brown for chassis / earth for both rear clusters.
  
 Note that the reverse lights and rear number plate lights do not go from the seven pin plug.
 These are separate wires as follows.
  
 Reverse light wires are Blue / Black, to reverse switch and then to rear light cluster(s).
 And rear number plate wires are Grey / Green.
  
  
 The other 7 pin connector is as follows.
 T7a/1 = Blue / Black 0.3 bar oil pressure switch
 T7a/2 = Yellow / Red coolant gauge sender
 T7a/3 = Blue / Green low coolant level switch
 T7a/4 = Brown Sender unit common grounds
 T7a/5 = Green rpm / tacho signal
 T7a/6 = Red / Black terminal 50 supply
 T7a/7 = Yellow 0.9 bar or 1.8 bar oil pressure switch.
 (Dependent upon model, with dynamic oil pressure system - DOPS / buzzer of doom).
  
  
  
 Compiled by Robsey



Steve
tel / txt O7947-137911
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1989 2.1LpgWBX HiTop Leisuredrive Camper
1988 2.1 Caravelle TS TinTop Camper 
 

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Robsey
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Re: temp sender wiring

Post by Robsey »

I think this is what you are looking for...

Image

Although you could make up a pair of wires,
Speaker wires would be suitable.

One for the yellow / red wire - to T7a/2
One for the brown common earth wire - to T7a/4
Just crimp on a pair of 2.8mm female spades for the sensor connections.

In my test loom, I crimped, soldered and heat-shrink sleeved the terminals.

Image

A touch of coppa-slip or copper grease on the terminals will help protect from ambient moisture.
1983 Tin Top with a poorly DF and 4 speed DT box.
1987 Electrics and a DJ engine.
Maybe one day I might get it finished

Betty boop 1
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Re: temp sender wiring

Post by Betty boop 1 »

Ok ive found the yellow/red wire (whats left of it) in the black juction box and the brown with thanks from the help.....the next question is.....is there a positive and neg on the sender.....with the plug attached they will only fit one way..the correct way....or is it just making a circuit connected either way...........i would also like to add there is an oil pressure switch connected and working you must have eyes like a outhouse rat  :lol: :lol: :lol:

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AngeloEvs
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Re: temp sender wiring

Post by AngeloEvs »

The sender is just a temperature sensitive resistor and the thermostat/sender housing is plastic so it should not really matter regards which terminal goes to which wire.
1987 DG Karisma LPG with remodelled interior

Betty boop 1
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Re: temp sender wiring

Post by Betty boop 1 »

:ok

Betty boop 1
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Re: temp sender wiring

Post by Betty boop 1 »

Image
Thank you for the advise and help its only been 6 yrs and a small but annoying problem

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