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Old 15 May 2013, 04:05   #41
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Ok the black and pink and black and orange go to your fuel sender (pink is signal). The black and blue and the other black and orange go to your external oil tank but it may not have a sender. The multiplug is for a paddle wheel.

On the fuel sender connect orange to ground and pink to signal (S+).

May then need calibrating.
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Old 15 May 2013, 07:39   #42
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Thanks for that J,

I am tempted to just wire in the pink and black an orange and black wires myself and see it anything works on the smart craft gauge as I don't see the point in spending money on a proper harness when the current harness is already got break outs

Cheers

Gareth
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Old 15 May 2013, 10:13   #43
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You don't need a proper harness for the sender. Just wire the two cables to the sender using any old wire you have as a temporary test. Remove the sender and follow the calibration procedure detailed in the thread if you don't get any joy when you first switch on.
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Old 16 May 2013, 02:36   #44
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The harness in the photo is where you boat harness plugs in to. So you still need the boat harness itself. This is the one that goes from that plug to your, oil tanks, fuel tanks and paddle wheel. The fuel gauges takes its info via the engine ecu not direct from the sender itself. so the fuel tank sender plugs in to the boat harness which plugs into the engine. ECU then sends the signal to the gauge.
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Old 16 May 2013, 03:24   #45
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Quote:
Originally Posted by Turbodiesel View Post
The harness in the photo is where you boat harness plugs in to. So you still need the boat harness itself. This is the one that goes from that plug to your, oil tanks, fuel tanks and paddle wheel. The fuel gauges takes its info via the engine ecu not direct from the sender itself. so the fuel tank sender plugs in to the boat harness which plugs into the engine. ECU then sends the signal to the gauge.
If I remember correctly the sender you need is the US one not the UK one, that will read ok but in reverse, ie full is empty. Details are in the manual. It is also possible to calibrate non square tanks if you start with an empty tank filling it in stages.
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Old 16 May 2013, 03:35   #46
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If I remember correctly the sender you need is the US one not the UK one, that will read ok but in reverse, ie full is empty. Details are in the manual. It is also possible to calibrate non square tanks if you start with an empty tank filling it in stages.
Yep, the calibration is easier with the sender out so you can move it by hand as you go. Not sure what's US and what's not but mine is a 30-240ohm and works fine....
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Old 16 May 2013, 03:56   #47
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Yep, the calibration is easier with the sender out so you can move it by hand as you go. Not sure what's US and what's not but mine is a 30-240ohm and works fine....
That's a US sender. Euro is 0-190 ohms.
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Old 01 June 2013, 16:28   #48
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Arghhhhhhhhhhhhhhhhhhh!!!!

Quote:
Originally Posted by Jizm View Post
You don't need a proper harness for the sender. Just wire the two cables to the sender using any old wire you have as a temporary test. Remove the sender and follow the calibration procedure detailed in the thread if you don't get any joy when you first switch on.
Connected pink/black wire and orange/black wire from engine harness with temp wire to the black and blue wires on brand new wema fuel sender in tank. I then followed calibration procedure on VDO gauge with sender outside the tank and I now longer get the fuel tank sender error message on smart craft gauge but doesn't matter what the float height is on my sender the smart craft gauge still reads 0 gallons and doesn't change

I haven't bought the harness as suggested by turbo diesel but I am very reluctant to do this as I won't fit the harness through my underfloor trunking

Any suggestions as to what my next moves should be anybody? Buy a Wema fuel gauge? Verify fuel sender (although its new) by measuring resistance at different float heights? Set fire to my boat ?

Thanks
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Old 01 June 2013, 16:44   #49
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Verify fuel sender (although its new) by measuring resistance at different float heights?

Thanks
That'd be a start
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Old 04 June 2013, 17:12   #50
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Still stuck with this!!!

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That'd be a start
Took the sender out and the resistance changed with float height so I know the float works (can't remember resistance readings). I also tried the pink and black wire (+ve / signal wire) and a -ve / neutral direct from the battery in case the black/orange was bad. So unless anybody else has any suggestions my options are

1.) Buy the paddle harness (may / may not fit down trunking)

2.) Buy the wema gauge which would be a lot easier but won't match the colour scheme of smart craft gauges

3.) Buy a smart craft fuel gauge and have a go at wiring it direct to the sender myself - not sure if this would work but wonder if anyone has done it

Thanks
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