Gq gauges

Good idea, I never actually thought of that! Haha.

I've bought myself a mechanical oil pressure gauge and some copper hose to suit, I was thinking of just removing the factory sender unit. Will this give me error codes on the computer? What size is the oil sender thread?

You could just put a T piece in where the sender is that way could have the original gauge and the mechanical gauge

I have been too scared to go much below 1/4 tank because it's so incorrect above that I have no idea what left. I'll get 450-470kms before it hits 1/4 and when I fill up its around 70L

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Originally Posted by Winnie

I have been too scared to go much below 1/4 tank because it's so incorrect above that I have no idea what left. I'll get 450-470kms before it hits 1/4 and when I fill up its around 70L

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So you have 25lt left which is Heaps mate. even on a bad day you have still got 150kms in the tank! My GQ has a fuel light too. I reckon your gauge sounds right mate if you have that much left and those kms.

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Originally Posted by taslucas

You could just put a T piece in where the sender is that way could have the original gauge and the mechanical gauge

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Thats what i have done and run both gauges. Both electric gauges and works great. The after Market is way more sensitive than the factory too.

Anyone heard of the tee piece breaking off because of the size of the original sender unit? That's my only issue with running the tee fitting. What size is the thread?

Re Gauge resistance:- At full 4.3 ohms. At empty 74.3 -84.8 ohms.

The set up for the gauge is basically a voltage divider - 2 resistor in series with a meter measuring the voltage at the junction of the 2. (one of the resistors is the tanke gauge)

I'm, using an ardunio microprocessor to display my LPG tank level - a estimate of distance left base on 24/l per 100k (i.e. 39l = 159Km) - also I had to average out the readings as the gauge jumps on bumps.

See the photo of the display and board - I have no added a Temp sensor - battery level sensor - and playing with a O2 senor at the moment.

Plus I now have set up a dimming control - as It was very bright at night time.

Best way to check gauge is drain the tank at home then put back in 10 or 20lt and check gauge reading. Then you will know that at x reading you have 20lts left in tank !!
cheers Tim