vt temp gauge with aftermarket ecu

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Jervies
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Joined: Wed Nov 09, 2011 7:35 am
cars: Vt v6 wiith a gt35/40 turbo e85 399rwkw
Mazda e2000 with a cammed vx ecotec motor
Location: Victoria

vt temp gauge with aftermarket ecu

Post by Jervies »

So I have no original ecu anymore and I'm trying to get the dash temp gauge working...

I've discovered it takes a 5v input to make it go to full and obviously half voltage for half temp so I'm wondering what I could use to convert a resistance in to a 5v output that I can adjust to get the gauge where I would like it.
Any ideas to get my gauge working would be great
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VL400
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cars: VL Calais and Toyota Landcruiser. Plus some toys :)
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Re: vt temp gauge with aftermarket ecu

Post by VL400 »

Can use a voltage divider to get a voltage that varies with resistance. But a temp sender is normally very non-linear.

I didnt know the temp gauge of the VT cluster even had a pin on the connector? It was driven by ALDL in a VT.
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krusty
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Re: vt temp gauge with aftermarket ecu

Post by krusty »

May be easier to find a sender that matches the stock thread pitch but has the appropriate range

http://www.tridon.com.au/pageBANK/docum ... Switch.pdf

The original part is TCS070 with 3/8 18npt thread
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Jervies
Posts: 199
Joined: Wed Nov 09, 2011 7:35 am
cars: Vt v6 wiith a gt35/40 turbo e85 399rwkw
Mazda e2000 with a cammed vx ecotec motor
Location: Victoria

Re: vt temp gauge with aftermarket ecu

Post by Jervies »

VL400 it doesn't have a pin on the loom nor does the engine light and oil pressure light that I have hooked up now :)
A voltage divider looks like it could work I have no idea where to start to set one up though, I'm not to conserned how linear it is just that I get some form of temp indication
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